Cybersecurity researchers have disclosed details of a security flaw that leverages indirect prompt injection targeting Google Gemini as a way to bypass authorization guardrails and use Google Calendar as a data extraction mechanism. The vulnerability, Miggo Security's Head of Research, Liad Eliyahu, said, made it possible to circumvent Google Calendar's privacy controls by hiding a dormant

Feras Albashiti faces 10 years after $20,000 in sales to undercover agent exposed ransomware ties

A Jordanian national faces sentencing in the US after pleading guilty to acting as an initial access broker (IAB) for various cyberattacks.…

The researcher who discovered the vulnerability saw more than 2,500 internet-exposed devices.

The post TP-Link Patches Vulnerability Exposing VIGI Cameras to Remote Hacking appeared first on SecurityWeek.

Investors didn't present a valid claim, says judge, but they're welcome to try again

A group of CrowdStrike shareholders who sued the company over losses sustained following its 2024 global outage will have to head back to the drawing board if they hope to recoup losses, as a Texas judge has deemed they failed to adequately state a claim.…

Operating as an access broker, the defendant sold unauthorized access to compromised networks to an undercover agent.

The post Jordanian Admits in US Court to Selling Access to 50 Enterprise Networks appeared first on SecurityWeek.

In cybersecurity, the line between a normal update and a serious incident keeps getting thinner. Systems that once felt reliable are now under pressure from constant change. New AI tools, connected devices, and automated systems quietly create more ways in, often faster than security teams can react. This week’s stories show how easily a small mistake or hidden service can turn into a real

They’re not the most sophisticated, but even simple attacks can lead to costly consequences

The UK's National Cyber Security Centre (NCSC) is once again warning that pro-Russia hacktivists are a threat to critical services operators.…

The information stealer abuses legitimate APIs and libraries to exfiltrate data to Discord webhooks.

The post ‘SolyxImmortal’ Information Stealer Emerges appeared first on SecurityWeek.

Information sharing is necessary for efficient cybersecurity, and is widespread; but never quite perfect in practice.

The post Cyber Insights 2026: Information Sharing appeared first on SecurityWeek.

Ships emergency update to fix a Patch Tuesday misfire that prevented systems from switching off

Microsoft has rushed out an out-of-band Windows 11 update after January's Patch Tuesday broke something as fundamental as turning PCs off.…

A group of cybercriminals called DarkSpectre is believed to be behind three campaigns spread by malicious browser extensions: ShadyPanda, GhostPoster, and Zoom Stealer.

We wrote about the ShadyPanda campaign in December 2025, warning users that extensions which had behaved normally for years suddenly went rogue. After a malicious update, these extensions were able to track browsing behavior and run malicious code inside the browser.

Also in December, researchers uncovered a new campaign, GhostPoster, and identified 17 compromised Firefox extensions. The campaign was found to hide JavaScript code inside the image logo of malicious Firefox extensions with more than 50,000 downloads, allowing attackers to to monitor browser activity and plant a backdoor.

The use of malicious code in images is a technique called steganography. Earlier GhostPoster extensions hid JavaScript loader code inside PNG icons such as logo.png for Firefox extensions like “Free VPN Forever,” using a marker (for example, three equals signs) in the raw bytes to separate image data from payload.

Newer variants moved to embedding payloads in arbitrary images inside the extension bundle, then decoding and decrypting them at runtime. This makes the malicious code much harder for researchers to detect.

Based on that research, other researchers found an additional 17 extensions associated with the same group, beyond the original Firefox set. These were downloaded more than 840,000 times in total, with some remaining active in the wild for up to five years.

GhostPoster first targeted Microsoft Edge users and later expanded to Chrome and Firefox as the attackers built out their infrastructure. The attackers published the extensions in each browser’s web store as seemingly useful tools with names like “Google Translate in Right Click,” “Ads Block Ultimate,” “Translate Selected Text with Google,” “Instagram Downloader,” and “Youtube Download.”

The extensions can see visited sites, search queries, and shopping behavior, allowing attackers to create detailed profiles of users’ habits and interests.

Combined with other malicious code, this visibility could be extended to credential theft, session hijacking, or attacks targeting online banking workflows, even if those are not the primary goal today.

How to stay safe

Although we always advise people to install extensions only from official web stores, this case proves once again that not all extensions available there are safe. That said, the risk involved in installing an extension from outside the web store is even greater.

Extensions listed in the web store undergo a review process before being approved. This process, which combines automated and manual checks, assesses the extension’s safety, policy compliance, and overall user experience. The goal is to protect users from scams, malware, and other malicious activity.

Mozilla and Microsoft have removed the identified add-ons from their stores, and Google has confirmed their removal from the Chrome Web Store. However, already installed extensions remain active in Chrome and Edge until users manually uninstall them. When Mozilla blocks an add-on it is also disabled, which prevents it from interacting with Firefox and accessing your browser and your data.

If you’re worried that you may have installed one of these extensions, Windows users can run a Malwarebytes Deep Scan with their browsers closed.

• On the Malwarebytes Dashboard click on the three stacked dots to select the Advanced Scan option.
  
• On the Advanced Scan tab, select Deep Scan. Note that this scan uses more system resources than usual.
• After the scan, remove any found items, and then reopen your browser(s).

Manual check:

These are the names of the 17 additional extensions that were discovered:

• AdBlocker
• Ads Block Ultimate
• Amazon Price History
• Color Enhancer
• Convert Everything
• Cool Cursor
• Floating Player – PiP Mode
• Full Page Screenshot
• Google Translate in Right Click
• Instagram Downloader
• One Key Translate
• Page Screenshot Clipper
• RSS Feed
• Save Image to Pinterest on Right Click
• Translate Selected Text with Google
• Translate Selected Text with Right Click
• Youtube Download

Note: There may be extensions with the same names that are not malicious.

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Maine filing confirms July attack affected 42,521 employees and job applicants

Ingram Micro disclosed that a July 2025 ransomware attack compromised the personal data of tens of thousands of employees.…

US officials told The New York Times that cyberattacks were used to turn off the lights in Caracas and disrupt air defense radars.

The post New Reports Reinforce Cyberattack’s Role in Maduro Capture Blackout appeared first on SecurityWeek.

It all sounds pretty dystopian:

Inside a white stucco building in Southern California, video cameras compare faces of passersby against a facial recognition database. Behavioral analysis AI reviews the footage for signs of violent behavior. Behind a bathroom door, a smoke detector-shaped device captures audio, listening for sounds of distress. Outside, drones stand ready to be deployed and provide intel from above, and license plate readers from $8.5 billion surveillance behemoth Flock Safety ensure the cars entering and exiting the parking lot aren’t driven by criminals.

This isn’t a high-security government facility. It’s Beverly Hills High School.

Labour's latest U-turn? 61 backbenchers pile pressure for Starmer to back Tory peer's amendment

The British government may impose a ban on under-16s using social media, despite Labour prime minister Keir Starmer having previously expressed skepticism over the measure.…

Just a few years ago, the cloud was touted as the “magic pill” for any cyber threat or performance issue. Many were lured by the “always-on” dream, trading granular control for the convenience of managed services. In recent years, many of us have learned (often the hard way) that public cloud service providers are not immune to attacks and SaaS downtime, hiding behind the Shared Responsibility

A team of academics from the CISPA Helmholtz Center for Information Security in Germany has disclosed the details of a new hardware vulnerability affecting AMD processors. The security flaw, codenamed StackWarp, can allow bad actors with privileged control over a host server to run malicious code within confidential virtual machines (CVMs), undermining the integrity guarantees provided by AMD

Kids return to classrooms after safety infrastructure knocked out

A Warwickshire secondary school says it will fully reopen this week after a cyberattack forced a prolonged closure – though staff will return to classrooms with "very limited access" to IT systems.…

Posing as an ad blocker, the malicious extension crashes the browser to lure victims into installing malware.

The post Malicious Chrome Extension Crashes Browser in ClickFix Variant ‘CrashFix’ appeared first on SecurityWeek.

The compromised personal information includes names, dates of birth, Social Security numbers, and employment-related data.

The post 42,000 Impacted by Ingram Micro Ransomware Attack appeared first on SecurityWeek.