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Verizon DBIR 2026: Vulnerability Exploitation Overtakes Credential Theft as Top Breach Vector

20 May 2026 at 02:04

Verizon’s 2026 DBIR finds vulnerability exploitation has overtaken credential abuse as the leading breach vector, as AI accelerates attacks, patching delays worsen, and ransomware and third-party compromises continue to surge.

The post Verizon DBIR 2026: Vulnerability Exploitation Overtakes Credential Theft as Top Breach Vector appeared first on SecurityWeek.

Biometrics, diagnoses, and bank details exposed in major healthcare breach

19 May 2026 at 17:56

NYC Health + Hospitals (NYC H+H) posted a data breach notice about a months‑long breach via a third‑party vendor that exposed highly sensitive patient and employee data for at least 1.8 million people, including medical records, government IDs, geolocation data, and even fingerprint and palm‑print biometrics.

NYC H+H detected suspicious activity on February 2, 2026, and later confirmed that an unauthorized actor had access to parts of its network from roughly late November 2025 through February 2026.

During this window, attackers copied files containing personal, medical, financial, and biometric information. The incident was reported to the US Department of Health and Human Services (HHS) on March 24, 2026, and currently affects at least 1.8 million individuals, making it one of the largest healthcare breaches of 2026 so far.

HHS filing

NYC H+H attributes the intrusion to a breach at an unnamed third‑party vendor that had access to its systems. This fits the current pattern of supply-chain compromises, where a vendor becomes the entry point for attackers to gain access to their clients’ systems or data.

Incidents like these are a textbook example of how deeply personal health data can fuel long‑term fraud, stalkerware‑like abuse, and permanent privacy loss.


Digital Footprint Scan

See if your personal data has been exposed.


Types of data

According to NYC H+H’s notice and related write‑ups, the exposed dataset is unusually broad and detailed.

We can divide the data into three distinct layers:

  • Classical PII, which can be combined with other leaked datasets: Full names and contact details. Government‑issued identifiers, including Social Security Numbers, driver’s license and passport numbers, other government ID numbers, taxpayer IDs, and IRS identity protection PINs. The breach also exposed billing and payment records, plus bank and card data, which can be used for direct financial theft and highly convincing social engineering.
  • Medical and insurance data: Detailed diagnoses, medication lists, and test results expose conditions people may have kept private from employers, family, or insurers, enabling blackmail, targeted scams, and discrimination. Insurance and claims data can be abused to submit fraudulent claims, redirect reimbursements, or impersonate existing identities in healthcare systems.
  • Biometrics: These are at least as sensitive as medical history because they tend to stay with you for life. They are not easy to erase or replace. Once compromised, large biometric databases become long‑term liabilities for everyone who relies on them as trustworthy identifiers.

Unfortunately, this is part of a broader pattern. The FBI’s Internet Crime Complaint Center (IC3) reports that healthcare was the most targeted critical infrastructure sector for ransomware in 2025, with 460 ransomware incidents and 182 reported healthcare data breaches.

The Change Healthcare ransomware attack alone exposed medical and billing data for more than 190 million Americans, highlighting how a single healthcare intermediary can disrupt an entire system.

What to do if you’re involved

If you’ve interacted with NYC Health + Hospitals, there’s a possibility your personal information could be affected.

NYC Health + Hospitals is making identity theft prevention and mitigation services, including credit monitoring, available through Kroll Information Assurance, LLC for a period of 24 months at no cost to all individuals who have worked for or been a patient of NYC Health + Hospitals. For more details check its data breach notice.

If you think you’ve been affected by a data breach, here are steps you can take to protect yourself:

  • Check the company’s advice. Every breach is different, so check with the company to find out what’s happened and follow any specific advice it offers.
  • Change your password. You can make a stolen password useless to thieves by changing it. Choose a strong password that you don’t use for anything else. Better yet, let a password manager choose one for you.
  • Enable two-factor authentication (2FA). If you can, use a FIDO2-compliant hardware key, laptop, or phone as your second factor. Some forms of 2FA can be phished just as easily as a password, but 2FA that relies on a FIDO2 device can’t be phished.
  • Watch out for impersonators. The criminals may contact you posing as the breached platform. Check the official website to see if it’s contacting victims and verify the identity of anyone who contacts you using a different communication channel.
  • Take your time. Phishing attacks often impersonate people or brands you know, and use themes that require urgent attention, such as missed deliveries, account suspensions, and security alerts.
  • Consider not storing your card details. It’s definitely more convenient to let sites remember your card details, but it increases risk if a retailer suffers a breach.
  • Set up identity monitoring, which alerts you if your personal information is found being traded illegally online and helps you recover after.

Let’s face it, an incognito window can only do so much. 
 
Breaches, dark web trading, credit fraud. Malwarebytes Identity Theft Protection monitors for all of it, alerts you fast, and comes with identity theft insurance. 

Biometrics, diagnoses, and bank details exposed in major healthcare breach

19 May 2026 at 17:56

NYC Health + Hospitals (NYC H+H) posted a data breach notice about a months‑long breach via a third‑party vendor that exposed highly sensitive patient and employee data for at least 1.8 million people, including medical records, government IDs, geolocation data, and even fingerprint and palm‑print biometrics.

NYC H+H detected suspicious activity on February 2, 2026, and later confirmed that an unauthorized actor had access to parts of its network from roughly late November 2025 through February 2026.

During this window, attackers copied files containing personal, medical, financial, and biometric information. The incident was reported to the US Department of Health and Human Services (HHS) on March 24, 2026, and currently affects at least 1.8 million individuals, making it one of the largest healthcare breaches of 2026 so far.

HHS filing

NYC H+H attributes the intrusion to a breach at an unnamed third‑party vendor that had access to its systems. This fits the current pattern of supply-chain compromises, where a vendor becomes the entry point for attackers to gain access to their clients’ systems or data.

Incidents like these are a textbook example of how deeply personal health data can fuel long‑term fraud, stalkerware‑like abuse, and permanent privacy loss.


Digital Footprint Scan

See if your personal data has been exposed.


Types of data

According to NYC H+H’s notice and related write‑ups, the exposed dataset is unusually broad and detailed.

We can divide the data into three distinct layers:

  • Classical PII, which can be combined with other leaked datasets: Full names and contact details. Government‑issued identifiers, including Social Security Numbers, driver’s license and passport numbers, other government ID numbers, taxpayer IDs, and IRS identity protection PINs. The breach also exposed billing and payment records, plus bank and card data, which can be used for direct financial theft and highly convincing social engineering.
  • Medical and insurance data: Detailed diagnoses, medication lists, and test results expose conditions people may have kept private from employers, family, or insurers, enabling blackmail, targeted scams, and discrimination. Insurance and claims data can be abused to submit fraudulent claims, redirect reimbursements, or impersonate existing identities in healthcare systems.
  • Biometrics: These are at least as sensitive as medical history because they tend to stay with you for life. They are not easy to erase or replace. Once compromised, large biometric databases become long‑term liabilities for everyone who relies on them as trustworthy identifiers.

Unfortunately, this is part of a broader pattern. The FBI’s Internet Crime Complaint Center (IC3) reports that healthcare was the most targeted critical infrastructure sector for ransomware in 2025, with 460 ransomware incidents and 182 reported healthcare data breaches.

The Change Healthcare ransomware attack alone exposed medical and billing data for more than 190 million Americans, highlighting how a single healthcare intermediary can disrupt an entire system.

What to do if you’re involved

If you’ve interacted with NYC Health + Hospitals, there’s a possibility your personal information could be affected.

NYC Health + Hospitals is making identity theft prevention and mitigation services, including credit monitoring, available through Kroll Information Assurance, LLC for a period of 24 months at no cost to all individuals who have worked for or been a patient of NYC Health + Hospitals. For more details check its data breach notice.

If you think you’ve been affected by a data breach, here are steps you can take to protect yourself:

  • Check the company’s advice. Every breach is different, so check with the company to find out what’s happened and follow any specific advice it offers.
  • Change your password. You can make a stolen password useless to thieves by changing it. Choose a strong password that you don’t use for anything else. Better yet, let a password manager choose one for you.
  • Enable two-factor authentication (2FA). If you can, use a FIDO2-compliant hardware key, laptop, or phone as your second factor. Some forms of 2FA can be phished just as easily as a password, but 2FA that relies on a FIDO2 device can’t be phished.
  • Watch out for impersonators. The criminals may contact you posing as the breached platform. Check the official website to see if it’s contacting victims and verify the identity of anyone who contacts you using a different communication channel.
  • Take your time. Phishing attacks often impersonate people or brands you know, and use themes that require urgent attention, such as missed deliveries, account suspensions, and security alerts.
  • Consider not storing your card details. It’s definitely more convenient to let sites remember your card details, but it increases risk if a retailer suffers a breach.
  • Set up identity monitoring, which alerts you if your personal information is found being traded illegally online and helps you recover after.

Let’s face it, an incognito window can only do so much. 
 
Breaches, dark web trading, credit fraud. Malwarebytes Identity Theft Protection monitors for all of it, alerts you fast, and comes with identity theft insurance. 

CISA Admin Leaked AWS GovCloud Keys on Github

18 May 2026 at 22:48

Until this past weekend, a contractor for the Cybersecurity & Infrastructure Security Agency (CISA) maintained a public GitHub repository that exposed credentials to several highly privileged AWS GovCloud accounts and a large number of internal CISA systems. Security experts said the public archive included files detailing how CISA builds, tests and deploys software internally, and that it represents one of the most egregious government data leaks in recent history.

On May 15, KrebsOnSecurity heard from Guillaume Valadon, a researcher with the security firm GitGuardian. Valadon’s company constantly scans public code repositories at GitHub and elsewhere for exposed secrets, automatically alerting the offending accounts of any apparent sensitive data exposures. Valadon said he reached out because the owner in this case wasn’t responding and the information exposed was highly sensitive.

A redacted screenshot of the now-defunct “Private CISA” repository maintained by a CISA contractor.

The GitHub repository that Valadon flagged was named “Private-CISA,” and it harbored a vast number of internal CISA/DHS credentials and files, including cloud keys, tokens, plaintext passwords, logs and other sensitive CISA assets.

Valadon said the exposed CISA credentials represent a textbook example of poor security hygiene, noting that the commit logs in the offending GitHub account show that the CISA administrator disabled the default setting in GitHub that blocks users from publishing SSH keys or other secrets in public code repositories.

“Passwords stored in plain text in a csv, backups in git, explicit commands to disable GitHub secrets detection feature,” Valadon wrote in an email. “I honestly believed that it was all fake before analyzing the content deeper. This is indeed the worst leak that I’ve witnessed in my career. It is obviously an individual’s mistake, but I believe that it might reveal internal practices.”

One of the exposed files, titled “importantAWStokens,” included the administrative credentials to three Amazon AWS GovCloud servers. Another file exposed in their public GitHub repository — “AWS-Workspace-Firefox-Passwords.csv” — listed plaintext usernames and passwords for dozens of internal CISA systems. According to Caturegli, those systems included one called “LZ-DSO,” which appears short for “Landing Zone DevSecOps,” the agency’s secure code development environment.

Philippe Caturegli, founder of the security consultancy Seralys, said he tested the AWS keys only to see whether they were still valid and to determine which internal systems the exposed accounts could access. Caturegli said the GitHub account that exposed the CISA secrets exhibits a pattern consistent with an individual operator using the repository as a working scratchpad or synchronization mechanism rather than a curated project repository.

“The use of both a CISA-associated email address and a personal email address suggests the repository may have been used across differently configured environments,” Caturegli observed. “The available Git metadata alone does not prove which endpoint or device was used.”

The Private CISA GitHub repo exposed dozens of plaintext credentials for important CISA GovCloud resources.

Caturegli said he validated that the exposed credentials could authenticate to three AWS GovCloud accounts at a high privilege level. He said the archive also includes plain text credentials to CISA’s internal “artifactory” — essentially a repository of all the code packages they are using to build software — and that this would represent a juicy target for malicious attackers looking for ways to maintain a persistent foothold in CISA systems.

“That would be a prime place to move laterally,” he said. “Backdoor in some software packages, and every time they build something new they deploy your backdoor left and right.”

In response to questions, a spokesperson for CISA said the agency is aware of the reported exposure and is continuing to investigate the situation.

“Currently, there is no indication that any sensitive data was compromised as a result of this incident,” the CISA spokesperson wrote. “While we hold our team members to the highest standards of integrity and operational awareness, we are working to ensure additional safeguards are implemented to prevent future occurrences.”

A review of the GitHub account and its exposed passwords show the “Private CISA” repository was maintained by an employee of Nightwing, a government contractor based in Dulles, Va. Nightwing declined to comment, directing inquiries to CISA.

CISA has not responded to questions about the potential duration of the data exposure, but Caturegli said the Private CISA repository was created on November 13, 2025. The contractor’s GitHub account was created back in September 2018.

The GitHub account that included the Private CISA repo was taken offline shortly after both KrebsOnSecurity and Seralys notified CISA about the exposure. But Caturegli said the exposed AWS keys inexplicably continued to remain valid for another 48 hours.

CISA is currently operating with only a fraction of its normal budget and staffing levels. The agency has lost nearly a third of its workforce since the beginning of the second Trump administration, which forced a series of early retirements, buyouts, and resignations across the agency’s various divisions.

The now-defunct Private CISA repo showed the contractor also used easily-guessed passwords for a number of internal resources; for example, many of the credentials used a password consisting of each platform’s name followed by the current year. Caturegli said such practices would constitute a serious security threat for any organization even if those credentials were never exposed externally, noting that threat actors often use key credentials exposed on the internal network to expand their reach after establishing initial access to a targeted system.

“What I suspect happened is [the CISA contractor] was using this GitHub to synchronize files between a work laptop and a home computer, because he has regularly committed to this repo since November 2025,” Caturegli said. “This would be an embarrassing leak for any company, but it’s even more so in this case because it’s CISA.”

1 in 8 employees have sold company logins or know someone who has

12 May 2026 at 11:21

UK anti-fraud non-profit Cifas just published research that should bother anyone who runs a business, or buys from one: One in eight workers at large enterprises have either sold their company login credentials or know someone who did.

The internet is awash with compromised credentials that employees use to access company systems. Threat intelligence company KELA tracked nearly 2.9 billion compromised credentials globally in 2025. Most of these come from phishing attacks and infostealers. But thanks to employees wanting to make a quick buck, cyber criminals can just make people an offer.

The insiders nobody’s watching

Cifas interviewed 2,000 employees of companies with at least 1,000 staff. Of these, 13% admitted to selling their corporate access credentials in the last 12 months, or knowing someone who did. Amazingly, as the report says, the sellers did so “often under the belief it’s harmless.”

Newsflash: Selling your account credentials isn’t harmless. Criminals want them so they can take over the account and do nefarious things with it. Account takeovers in the US surged 6% to over 78,000 last year, according to Verizon.

Many hijacked accounts are personal ones for services ranging from social media to online streaming sites, and of course bank accounts. But many others are accounts for business systems like Microsoft 365, Salesforce, and other platforms that hold sensitive company data. Those secrets are valuable commodities for criminals who can then trade them on the open market.

Your boss is more likely to sell than you

Ideally, this is where a common technique called “least-privilege access” should come in.

The idea is that a corporate online account should only have access to what it needs. So Jim in the canteen should have access to the food ordering system, but not to the entire customer database. That way, even if Jim’s account gets compromised, the worst the attackers could do is deprive you of sausages tomorrow.

The problem is that, according to the report, higher-ups are even more comfortable selling their account credentials than low-level employees. Thirty-two percent of senior managers find it justifiable, along with 36% of directors, 43% of C-suite executives, and, stunningly, four in five business owners. Their roles mean that even with least-privilege access, their accounts can still open routes to sensitive system functions and data.

This isn’t just a UK problem

The Cifas research is UK-specific, but that’s likely not where it ends. We’ve seen employees at several companies selling access to either company accounts or records. For example, cryptocurrency company Coinbase revealed last year that employees at a Bangladesh-based outsourcing company sold customer records to hackers.

Compromised credentials are widespread. Our own research found that in a single 30-day window, 111 Fortune 500 companies had employee credentials leaked. Long-term, 363 of those firms (that’s 73%) have lost control of at least one employee credential.

Employees selling their access credentials isn’t just bad for the companies that employ them. It’s also bad for customers.

When a director’s password goes up for sale, a customer file might not be far behind, although it likely won’t be the director selling it. Malwarebytes found that 91% of Fortune 500 companies have had their customers’ credentials leaked, and hijacked accounts are a great way to get at them.

So insider risk isn’t just a corporate issue. It’s also a consumer one. That makes us less likely to hand over our personal information to large enterprises without questioning why they need it.


Your name, address, and phone number are probably already for sale.  

Data brokers collect and sell your personal details to anyone willing to pay. Malwarebytes Personal Data Remover finds them and gets your information removed, then keeps watch so it stays that way. 

1 in 8 employees have sold company logins or know someone who has

12 May 2026 at 11:21

UK anti-fraud non-profit Cifas just published research that should bother anyone who runs a business, or buys from one: One in eight workers at large enterprises have either sold their company login credentials or know someone who did.

The internet is awash with compromised credentials that employees use to access company systems. Threat intelligence company KELA tracked nearly 2.9 billion compromised credentials globally in 2025. Most of these come from phishing attacks and infostealers. But thanks to employees wanting to make a quick buck, cyber criminals can just make people an offer.

The insiders nobody’s watching

Cifas interviewed 2,000 employees of companies with at least 1,000 staff. Of these, 13% admitted to selling their corporate access credentials in the last 12 months, or knowing someone who did. Amazingly, as the report says, the sellers did so “often under the belief it’s harmless.”

Newsflash: Selling your account credentials isn’t harmless. Criminals want them so they can take over the account and do nefarious things with it. Account takeovers in the US surged 6% to over 78,000 last year, according to Verizon.

Many hijacked accounts are personal ones for services ranging from social media to online streaming sites, and of course bank accounts. But many others are accounts for business systems like Microsoft 365, Salesforce, and other platforms that hold sensitive company data. Those secrets are valuable commodities for criminals who can then trade them on the open market.

Your boss is more likely to sell than you

Ideally, this is where a common technique called “least-privilege access” should come in.

The idea is that a corporate online account should only have access to what it needs. So Jim in the canteen should have access to the food ordering system, but not to the entire customer database. That way, even if Jim’s account gets compromised, the worst the attackers could do is deprive you of sausages tomorrow.

The problem is that, according to the report, higher-ups are even more comfortable selling their account credentials than low-level employees. Thirty-two percent of senior managers find it justifiable, along with 36% of directors, 43% of C-suite executives, and, stunningly, four in five business owners. Their roles mean that even with least-privilege access, their accounts can still open routes to sensitive system functions and data.

This isn’t just a UK problem

The Cifas research is UK-specific, but that’s likely not where it ends. We’ve seen employees at several companies selling access to either company accounts or records. For example, cryptocurrency company Coinbase revealed last year that employees at a Bangladesh-based outsourcing company sold customer records to hackers.

Compromised credentials are widespread. Our own research found that in a single 30-day window, 111 Fortune 500 companies had employee credentials leaked. Long-term, 363 of those firms (that’s 73%) have lost control of at least one employee credential.

Employees selling their access credentials isn’t just bad for the companies that employ them. It’s also bad for customers.

When a director’s password goes up for sale, a customer file might not be far behind, although it likely won’t be the director selling it. Malwarebytes found that 91% of Fortune 500 companies have had their customers’ credentials leaked, and hijacked accounts are a great way to get at them.

So insider risk isn’t just a corporate issue. It’s also a consumer one. That makes us less likely to hand over our personal information to large enterprises without questioning why they need it.


Your name, address, and phone number are probably already for sale.  

Data brokers collect and sell your personal details to anyone willing to pay. Malwarebytes Personal Data Remover finds them and gets your information removed, then keeps watch so it stays that way. 

Canvas System Is Online After a Cyberattack Disrupted Thousands of Schools

11 May 2026 at 10:35

Tens of thousands of students studying for final exams around the world have regained access to a key online learning system after a cyberattack had earlier knocked it offline.

The post Canvas System Is Online After a Cyberattack Disrupted Thousands of Schools appeared first on SecurityWeek.

ShinyHunters escalates Canvas attacks with school login defacements

8 May 2026 at 14:00

Days after confirming a major data breach, Instructure is now facing a second blow.

Earlier this week, Instructure confirmed a major data breach affecting its cloud‑hosted Canvas environment, with the ShinyHunters group claiming it stole hundreds of millions of records tied to thousands of schools and universities worldwide. As discussed in our earlier blog, that incident involved data such as student and staff records, enrollment details, and private messages allegedly accessed through Canvas export features and APIs. At that stage, the focus was on large‑scale data theft and the long‑term risks for affected students and families, including identity fraud and highly targeted phishing.

According to new reporting, ShinyHunters has now hit Instructure again, this time moving from quiet data theft to very visible extortion. Using another vulnerability in Instructure’s systems, the attackers were able to modify Canvas login portals for hundreds of educational institutions, defacing both web logins and the Canvas app with an on‑screen ransom message.

applying extra pressure
Image credit: vx-underground

The message both claimed responsibility for the earlier breach and set a deadline of May 12 for Instructure and affected schools to contact the gang or risk the public release of stolen data.

This second wave matters for two reasons. First, it confirms that ShinyHunters still has meaningful access to Instructure’s environment, or at least to components that control the look and behavior of school login pages. Second, it marks a clear escalation in pressure tactics, from leaked claims and dark web posts to messages shown directly to students, parents, and staff trying to access their courses.

How to deal with this data breach

For students and families, the practical advice from our original blog still applies:

  • Reset Canvas‑related passwords
  • Enable multi‑factor authentication where possible
  • Monitor financial and credit activity as children get older
  • Stay wary of highly personalized phishing that references real schools, courses, or teachers

For schools and districts, this latest extortion campaign underlines the need to coordinate closely with Instructure, review single sign-on (SSO) integrations, and prepare clear communications so that any future defacements or data leaks do not catch staff and parents by surprise.


CNET Editors' Choice Award 2026

“One of the best cybersecurity suites on the planet.” 

According to CNET. Read their review


ShinyHunters escalates Canvas attacks with school login defacements

8 May 2026 at 14:00

Days after confirming a major data breach, Instructure is now facing a second blow.

Earlier this week, Instructure confirmed a major data breach affecting its cloud‑hosted Canvas environment, with the ShinyHunters group claiming it stole hundreds of millions of records tied to thousands of schools and universities worldwide. As discussed in our earlier blog, that incident involved data such as student and staff records, enrollment details, and private messages allegedly accessed through Canvas export features and APIs. At that stage, the focus was on large‑scale data theft and the long‑term risks for affected students and families, including identity fraud and highly targeted phishing.

According to new reporting, ShinyHunters has now hit Instructure again, this time moving from quiet data theft to very visible extortion. Using another vulnerability in Instructure’s systems, the attackers were able to modify Canvas login portals for hundreds of educational institutions, defacing both web logins and the Canvas app with an on‑screen ransom message.

applying extra pressure
Image credit: vx-underground

The message both claimed responsibility for the earlier breach and set a deadline of May 12 for Instructure and affected schools to contact the gang or risk the public release of stolen data.

This second wave matters for two reasons. First, it confirms that ShinyHunters still has meaningful access to Instructure’s environment, or at least to components that control the look and behavior of school login pages. Second, it marks a clear escalation in pressure tactics, from leaked claims and dark web posts to messages shown directly to students, parents, and staff trying to access their courses.

How to deal with this data breach

For students and families, the practical advice from our original blog still applies:

  • Reset Canvas‑related passwords
  • Enable multi‑factor authentication where possible
  • Monitor financial and credit activity as children get older
  • Stay wary of highly personalized phishing that references real schools, courses, or teachers

For schools and districts, this latest extortion campaign underlines the need to coordinate closely with Instructure, review single sign-on (SSO) integrations, and prepare clear communications so that any future defacements or data leaks do not catch staff and parents by surprise.


CNET Editors' Choice Award 2026

“One of the best cybersecurity suites on the planet.” 

According to CNET. Read their review


Canvas Breach Disrupts Schools & Colleges Nationwide

8 May 2026 at 04:58

An ongoing data extortion attack targeting the widely-used education technology platform Canvas disrupted classes and coursework at school districts and universities across the United States today, after a cybercrime group defaced the service’s login page with a ransom demand that threatened to leak data from 275 million students and faculty across nearly 9,000 educational institutions.

A screenshot shared by a reader showing the extortion message that was shown on the Canvas login page today.

Canvas parent firm Instructure responded to today’s defacement attacks by disabling the platform, which is used by thousands of schools, universities and businesses to manage coursework and assignments, and to communicate with students.

Instructure acknowledged a data breach earlier this week, after the cybercrime group ShinyHunters claimed responsibility and said they would leak data on tens of millions of students and faculty unless paid a ransom. The stated deadline for payment was initially set at May 6, but it was later pushed back to May 12.

In a statement on May 6, Instructure said the investigation so far shows the stolen information includes “certain identifying information of users at affected institutions, such as names, email addresses, and student ID numbers, as well as as messages among users.” The company said it found no evidence the breached data included more sensitive information, such as passwords, dates of birth, government identifiers or financial information.

The May 6 update stated that Canvas was fully operational, and that Instructure was not seeing any ongoing unauthorized activity on their platform. “At this stage, we believe the incident has been contained,” Instructure wrote.

However, by mid-day on Thursday, May 7, students and faculty at dozens of schools and universities were flooding social media sites with comments saying that a ransom demand from ShinyHunters had replaced the usual Canvas login page. Instructure responded by pulling Canvas offline and replacing the portal with the message, “Canvas is currently undergoing scheduled maintenance. Check back soon.”

“We anticipate being up soon, and will provide updates as soon as possible,” reads the current message on Instructure’s status page.

While the data stolen by ShinyHunters may or may not contain particularly sensitive information (ShinyHunters claims it includes several billion private messages among students and teachers, as well as names, phone numbers and email addresses), this attack could hardly have come at a worse time for Instructure: Many of the affected schools and universities are in the middle of final exams, and a prolonged outage could be highly damaging for the company.

The extortion message that greeted countless Canvas users today advised the affected schools to negotiate their own ransom payments to prevent the publication of their data — regardless of whether Instructure decides to pay.

“ShinyHunters has breached Instructure (again),” the extortion message read. “Instead of contacting us to resolve it they ignored us and did some ‘security patches.'”

A source close to the investigation who was not authorized to speak to the press told KrebsOnSecurity that a number of universities have already approached the cybercrime group about paying. The same source also pointed out that the ShinyHunters data leak blog no longer lists Instructure among its current extortion victims, and that the samples of data stolen from Canvas customers were removed as well. Data extortion groups like ShinyHunters will typically only remove victims from their leak sites after receiving an extortion payment or after a victim agrees to negotiate.

Dipan Mann, founder and CEO of the security firm Cloudskope, slammed Instructure for referring to today’s outage as a “scheduled maintenance” event on its status page. Mann said Shiny Hunters first demonstrated they’d breached Instructure on May 1, prompting Instructure’s Chief Information Security Officer Steve Proud to declare the following day that the incident had been contained. But Mann said today’s attack is at least the third time in the past eight months that Instructure has been breached by ShinyHunters.

In a blog post today, Mann noted that in September 2025, ShinyHunters released thousands of internal University of Pennsylvania files — donor records, internal memos, and other confidential materials — through what the Daily Pennsylvanian and other outlets later determined was, in part, a Canvas/Instructure-mediated access path.

“Penn was the named victim,” Mann wrote. “Instructure was the mechanism. The incident was treated as a Penn-specific story by most of the national press and quietly handled by Instructure as a customer-specific matter. That framing was wrong then. It is dramatically more wrong in light of the May 2026 events, which now look like the planned escalation of an attack pattern that ShinyHunters had been working against Instructure’s environment for at least eight months prior. The September 2025 Penn breach was the proof of concept. The May 1, 2026 incident was the production run. The May 7, 2026 recompromise was ShinyHunters demonstrating publicly that the May 2 ‘containment’ did not happen.”

In February, a ShinyHunters spokesperson told The Daily Pennsylvanian that Penn failed to pay a $1 million ransom demand. On March 5, ShinyHunters published 461 megabytes worth of data stolen from Penn, including thousands of files such as donor records and internal memos.

ShinyHunters is a prolific and fluid cybercriminal group that specializes in data theft and extortion. They typically gain access to companies through voice phishing and social engineering attacks that often involve impersonating IT personnel or other trusted members of a targeted organization.

Last month, ShinyHunters relieved the home security giant ADT of personal information on 5.5 million customers. The extortion group told BleepingComputer they breached the company by compromising an employee’s Okta single sign-on account in a voice phishing attack that enabled access to ADT’s Salesforce instance. BleepingComputer says ShinyHunters recently has taken credit for a number of extortion attacks against high-profile organizations, including Medtronic, Rockstar Games, McGraw Hill, 7-Eleven and the cruise line operator Carnival.

The attack on Canvas customers is just one of several major cybercrime campaigns being launched by ShinyHunters at the moment, said Charles Carmakal, chief technology officer at the Google-owned Mandiant Consulting. Carmakal declined to comment specifically on the Canvas breach, but said “there are multiple concurrent and discrete ShinyHunters intrusion and extortion campaigns happening right now.”

Cloudskope’s Mann said what happens next depends largely on whether Instructure’s customers — the universities, K-12 districts, and education ministries paying for Canvas — choose to apply pressure or absorb the breach quietly.

“The history of education-vendor incidents suggests the path of least resistance is the second one,” he concluded.

Update, May 8, 11:05 a.m. ET: Instructure has published an incident update page that includes more information about the breach. Instructure said its Canvas portal is functioning normally again, and that the hackers exploited an issue related to Free-for-Teacher accounts.

“This is the same issue that led to the unauthorized access the prior week,” Instructure wrote. “As a result, we have made the difficult decision to temporarily shut down Free-for-Teacher accounts. These accounts have been a core part of our platform, and we’re committed to resolving the issues with these accounts.”

Instructure said affected organizations were notified on May 6.

“If your organization is affected, Instructure will contact your organization’s primary contacts directly,” the update states. “Please don’t rely on third-party lists or social media posts naming potentially affected organizations as those lists aren’t verified. Instructure will confirm validated information through direct outreach to all affected organizations.”

Update, May 11, 10:16 p.m. ET: Instructure posted an update saying they paid their extortionists in exchange for a promise to destroy the stolen data. “The data was returned to us,” the update reads. “We received digital confirmation of data destruction (shred logs). We have been informed that no Instructure customers will be extorted as a result of this incident, publicly or otherwise.”

Millions of students’ personal data stolen in major education breach

6 May 2026 at 14:45

Instructure, the company behind the Canvas learning management system (LMS), confirmed a cyber incident and subsequent data breach affecting its cloud‑hosted environment.

The ShinyHunters ransomware group claims it is behind the attack and says it stole roughly 275 million records tied to students, teachers, and staff.

ShinyHunters leak site
Image courtesy of BleepingComputer

The criminals shared a list of 8,809 school districts, universities, and online education platforms with BleepingComputer whose Canvas instances they claim were impacted, with per‑institution record counts ranging from tens of thousands to several million.


Digital Footprint Scan

See if your personal data has been exposed.


What to do if your child’s Instructure/Canvas data was exposed

If you’ve been told that your child was affected by the Instructure breach, you may be wondering what you can do to protect them. Here are some practical steps you can take right away.

1. Check what the school and Instructure are saying

Start with the notification from the school or district and Instructure’s own updates to understand what data about your child was involved (for example: name, email address, student ID, or course information). Follow any specific steps they recommend for student accounts and keep an eye on follow‑up messages in case new information comes to light.

Make sure the notification is real before anything else. If anything in the message looks suspicious, such as odd links, pressure to act immediately, or requests for extra data, check this first. Go to the district’s or Instructure’s site directly and use the contact details listed there to verify.

2. Lock down your child’s school and learning accounts

If your child has a Canvas or related account, change that password immediately, especially if your school lets students or parents log in with a username and password instead of single sign‑on. If your child tends to reuse passwords (for example, using the same one for Canvas, email, and gaming accounts), change those other passwords as well.

Give every account its own strong, unique password and consider using a family password manager so you can create and store these without relying on memory. For younger children, you may want to manage these credentials yourself and keep a list of which education platforms they use.

3. Turn on multi‑factor authentication where possible

Multi‑factor authentication (MFA) makes it much harder for someone to log into an account with just a password. If your school or district allows it on parent or student accounts (for example, a code sent by SMS, email, or generated in an authenticator app), turn it on and, ideally, have the codes go to a device or app you control.

Remind your child that security codes are like short‑term passwords. They should never share them with friends, teachers, or anyone claiming to be “IT support,” even if a message looks urgent or uses school branding.

4. Consider extra identity protection for minors

If the breach included very sensitive identifiers (such as national ID or Social Security numbers in some regions), ask both the school and the breached provider what protection is being offered for minors, such as credit monitoring or identity restoration services. In some countries, you can also place a credit freeze or similar block on a minor’s file to prevent new accounts being opened in their name.

Even if your child is too young to have a credit file today, it’s worth keeping a note of this incident so you remember to check their records once they are old enough.

5. Stay alert for follow‑on scams

Attackers like to reuse stolen data from education platforms to make phishing and scam messages more convincing, mentioning real school names, teachers, or courses. Be especially wary of emails and texts that claim to be from the school, district, or Instructure and that ask you to “confirm” login details, open unexpected attachments (like “new assignments”), or pay fees via unusual methods.

As a rule of thumb, avoid clicking links in unsolicited messages about the breach. Instead, open a new browser window and go to the official site or app as you normally would, then log in from there to check for messages.


What do cybercriminals know about you?

Use Malwarebytes’ free Digital Footprint scan to see whether your personal information has been exposed online.

Millions of students’ personal data stolen in major education breach

6 May 2026 at 14:45

Instructure, the company behind the Canvas learning management system (LMS), confirmed a cyber incident and subsequent data breach affecting its cloud‑hosted environment.

The ShinyHunters ransomware group claims it is behind the attack and says it stole roughly 275 million records tied to students, teachers, and staff.

ShinyHunters leak site
Image courtesy of BleepingComputer

The criminals shared a list of 8,809 school districts, universities, and online education platforms with BleepingComputer whose Canvas instances they claim were impacted, with per‑institution record counts ranging from tens of thousands to several million.


Digital Footprint Scan

See if your personal data has been exposed.


What to do if your child’s Instructure/Canvas data was exposed

If you’ve been told that your child was affected by the Instructure breach, you may be wondering what you can do to protect them. Here are some practical steps you can take right away.

1. Check what the school and Instructure are saying

Start with the notification from the school or district and Instructure’s own updates to understand what data about your child was involved (for example: name, email address, student ID, or course information). Follow any specific steps they recommend for student accounts and keep an eye on follow‑up messages in case new information comes to light.

Make sure the notification is real before anything else. If anything in the message looks suspicious, such as odd links, pressure to act immediately, or requests for extra data, check this first. Go to the district’s or Instructure’s site directly and use the contact details listed there to verify.

2. Lock down your child’s school and learning accounts

If your child has a Canvas or related account, change that password immediately, especially if your school lets students or parents log in with a username and password instead of single sign‑on. If your child tends to reuse passwords (for example, using the same one for Canvas, email, and gaming accounts), change those other passwords as well.

Give every account its own strong, unique password and consider using a family password manager so you can create and store these without relying on memory. For younger children, you may want to manage these credentials yourself and keep a list of which education platforms they use.

3. Turn on multi‑factor authentication where possible

Multi‑factor authentication (MFA) makes it much harder for someone to log into an account with just a password. If your school or district allows it on parent or student accounts (for example, a code sent by SMS, email, or generated in an authenticator app), turn it on and, ideally, have the codes go to a device or app you control.

Remind your child that security codes are like short‑term passwords. They should never share them with friends, teachers, or anyone claiming to be “IT support,” even if a message looks urgent or uses school branding.

4. Consider extra identity protection for minors

If the breach included very sensitive identifiers (such as national ID or Social Security numbers in some regions), ask both the school and the breached provider what protection is being offered for minors, such as credit monitoring or identity restoration services. In some countries, you can also place a credit freeze or similar block on a minor’s file to prevent new accounts being opened in their name.

Even if your child is too young to have a credit file today, it’s worth keeping a note of this incident so you remember to check their records once they are old enough.

5. Stay alert for follow‑on scams

Attackers like to reuse stolen data from education platforms to make phishing and scam messages more convincing, mentioning real school names, teachers, or courses. Be especially wary of emails and texts that claim to be from the school, district, or Instructure and that ask you to “confirm” login details, open unexpected attachments (like “new assignments”), or pay fees via unusual methods.

As a rule of thumb, avoid clicking links in unsolicited messages about the breach. Instead, open a new browser window and go to the official site or app as you normally would, then log in from there to check for messages.


What do cybercriminals know about you?

Use Malwarebytes’ free Digital Footprint scan to see whether your personal information has been exposed online.

Actively exploited cPanel bug exposes millions of websites to takeover

1 May 2026 at 12:48

Security researchers are warning about a newly discovered vulnerability in the widely used web server management software cPanel and WebHost Manager (WHM). 

This is a critical, actively exploited authentication-bypass bug in cPanel/WHM that lets attackers gain administrative access to the interface without credentials, potentially take over servers and all hosted sites.

The vulnerability, tracked as CVE-2026-41940, has been added to the Known Exploited Vulnerabilities catalog by the Cybersecurity and Infrastructure Security Agency (CISA), meaning there is evidence it is being used in real-world attacks.

Because cPanel/WHM is used by over a million sites worldwide, including banks and health organizations, the potential impact is huge. In simple terms, the bug can act like a front‑door key to a big chunk of the web’s hosting infrastructure.

cPanel released patches on April 28, 2026, and urged all customers and hosts to update. It said all supported versions after 11.40 are affected, including DNSOnly and WP Squared.

Hosting providers including Namecheap, HostGator, and KnownHost temporarily blocked access to cPanel interfaces while patching, treating this as a critical authentication bypass and reporting exploit attempts going back to late February 2026.

How to stay safe

While it’s up to the hosting companies and website owners to patch as quickly as possible, there are ways to reduce your risk if a site you use is compromised.

As always, limit the data you share with websites to what’s absolutely necessary. Data they don’t have can’t be stolen.

When ordering from an online retailer, don’t tick the box to save your card details for future purchases as they will be stored on the server.

If there’s an option to check out as a guest, use it. It reduces the amount of personal data tied to an account.

Don’t reuse passwords. When one site is compromised, having the same credentials in several places turns it into a multi‑account takeover problem. A password manager can help you create complex unique passphrases, and remember them for you.

Where possible, pay by credit card. In many regions, this gives you stronger fraud protection.


Personal Data Remover

Your details are probably already for sale. 


When a site you trust gets hacked

If you think you’ve been affected by a data breach, take the following steps:

  • Check the company’s advice. Every breach is different, so check with the company to find out what’s happened and follow any specific advice it offers.
  • Change your password. You can make a stolen password useless to thieves by changing it. Choose a strong password that you don’t use for anything else. Better yet, let a password manager choose one for you.
  • Enable two-factor authentication (2FA). If you can, use a FIDO2-compliant hardware key, laptop, or phone as your second factor. Some forms of 2FA can be phished just as easily as a password, but 2FA that relies on a FIDO2 device can’t be phished.
  • Watch out for impersonators. The thieves may contact you posing as the breached platform. Check the official website to see if it’s contacting victims and verify the identity of anyone who contacts you using a different communication channel.
  • Take your time. Phishing attacks often impersonate people or brands you know, and use themes that require urgent attention, such as missed deliveries, account suspensions, and security alerts.
  • Consider not storing your card details. It’s definitely more convenient to let sites remember your card details, but it increases risk if a retailer suffers a breach.
  • Set up identity monitoring, which alerts you if your personal information is found being traded illegally online and helps you recover after.

What do cybercriminals know about you?

Use Malwarebytes’ free Digital Footprint scan to see whether your personal information has been exposed online.

Actively exploited cPanel bug exposes millions of websites to takeover

1 May 2026 at 12:48

Security researchers are warning about a newly discovered vulnerability in the widely used web server management software cPanel and WebHost Manager (WHM). 

This is a critical, actively exploited authentication-bypass bug in cPanel/WHM that lets attackers gain administrative access to the interface without credentials, potentially take over servers and all hosted sites.

The vulnerability, tracked as CVE-2026-41940, has been added to the Known Exploited Vulnerabilities catalog by the Cybersecurity and Infrastructure Security Agency (CISA), meaning there is evidence it is being used in real-world attacks.

Because cPanel/WHM is used by over a million sites worldwide, including banks and health organizations, the potential impact is huge. In simple terms, the bug can act like a front‑door key to a big chunk of the web’s hosting infrastructure.

cPanel released patches on April 28, 2026, and urged all customers and hosts to update. It said all supported versions after 11.40 are affected, including DNSOnly and WP Squared.

Hosting providers including Namecheap, HostGator, and KnownHost temporarily blocked access to cPanel interfaces while patching, treating this as a critical authentication bypass and reporting exploit attempts going back to late February 2026.

How to stay safe

While it’s up to the hosting companies and website owners to patch as quickly as possible, there are ways to reduce your risk if a site you use is compromised.

As always, limit the data you share with websites to what’s absolutely necessary. Data they don’t have can’t be stolen.

When ordering from an online retailer, don’t tick the box to save your card details for future purchases as they will be stored on the server.

If there’s an option to check out as a guest, use it. It reduces the amount of personal data tied to an account.

Don’t reuse passwords. When one site is compromised, having the same credentials in several places turns it into a multi‑account takeover problem. A password manager can help you create complex unique passphrases, and remember them for you.

Where possible, pay by credit card. In many regions, this gives you stronger fraud protection.


Personal Data Remover

Your details are probably already for sale. 


When a site you trust gets hacked

If you think you’ve been affected by a data breach, take the following steps:

  • Check the company’s advice. Every breach is different, so check with the company to find out what’s happened and follow any specific advice it offers.
  • Change your password. You can make a stolen password useless to thieves by changing it. Choose a strong password that you don’t use for anything else. Better yet, let a password manager choose one for you.
  • Enable two-factor authentication (2FA). If you can, use a FIDO2-compliant hardware key, laptop, or phone as your second factor. Some forms of 2FA can be phished just as easily as a password, but 2FA that relies on a FIDO2 device can’t be phished.
  • Watch out for impersonators. The thieves may contact you posing as the breached platform. Check the official website to see if it’s contacting victims and verify the identity of anyone who contacts you using a different communication channel.
  • Take your time. Phishing attacks often impersonate people or brands you know, and use themes that require urgent attention, such as missed deliveries, account suspensions, and security alerts.
  • Consider not storing your card details. It’s definitely more convenient to let sites remember your card details, but it increases risk if a retailer suffers a breach.
  • Set up identity monitoring, which alerts you if your personal information is found being traded illegally online and helps you recover after.

What do cybercriminals know about you?

Use Malwarebytes’ free Digital Footprint scan to see whether your personal information has been exposed online.

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