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Legacy Windows Tool MSHTA Fuels Surge in Silent Malware Attacks

Attackers are increasingly abusing Microsoft’s decades-old MSHTA utility to stealthily deliver stealers, loaders, and persistent malware through phishing, fake software downloads, and LOLBIN-based attack chains.

The post Legacy Windows Tool MSHTA Fuels Surge in Silent Malware Attacks appeared first on SecurityWeek.

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What to Do When a Third-Party Data Breach Puts Your Website at Risk

What to Do When a Third-Party Data Breach Puts Your Website at Risk

Data breach notification letters have become a familiar routine. They usually start with “We value your privacy” and offer a year of free credit monitoring. But the most important part is often hidden in the middle:

A list of what actually got out.

A leaked email address is not a leaked admin password. A hashed credential is not a session token. There is no universal post-breach checklist. The right response depends on the data exposed, so read the notice carefully and match your response to the level of exposure.

Continue reading What to Do When a Third-Party Data Breach Puts Your Website at Risk at Sucuri Blog.

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OpenAI’s GPT-5.5 is as Good as Mythos at Finding Security Vulnerabilities

The UK’s AI Security Institute evaluated GPT-5.5’s ability to find security vulnerabilities, and found that it is comparable to Claude Mythos. Note that the OpenAI model is generally available.

Here is the Institute’s evaluation of Mythos.

And here is an analysis of a smaller, cheaper model. It requires more scaffolding from the prompter, but it is also just as good.

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DNSSEC: The Extra Security Layer That Can Break Your Padlock

DNSSEC: The Extra Security Layer That Can Break Your Padlock

Turning on DNSSEC makes your domain more secure — but if it’s misconfigured, newer certificate validation rules can stop SSL renewals in their tracks.

Hey there,

You know that satisfying click when you finally turn on DNSSEC? It feels like adding a shiny new deadbolt to your domain’s front door. You’re doing the responsible thing: locking down your DNS against spoofing and hijacks, and making the internet just a bit safer.

Continue reading DNSSEC: The Extra Security Layer That Can Break Your Padlock at Sucuri Blog.

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Vulnerability & Patch Roundup — April 2026

Vulnerability & Patch Roundup — April 2026

Vulnerability reports and responsible disclosures are essential for website security awareness and education. Automated attacks targeting known software vulnerabilities are one of the leading causes of website compromises.

To help educate website owners about potential threats to their environments, we’ve compiled a list of important security updates and vulnerability patches for the WordPress ecosystem this past month.

The vulnerabilities listed below are virtually patched by the Sucuri Firewall and existing clients are protected.

Continue reading Vulnerability & Patch Roundup — April 2026 at Sucuri Blog.

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Utah’s New Law Targeting VPNs Goes Into Effect May 6th

Update, May 11, 2026: Utah has agreed to not enforce the VPN law until Sept. 3, 2026 after Aylo, the parent company of Pornhub.com, challenged the law in court.

For the last couple of years, we’ve watched the same predictable cycle play out across the globe: a state (or country) passes a clunky age-verification mandate, and, without fail, Virtual Private Network (VPN) usage surges as residents scramble to maintain their privacy and anonymity. We've seen this everywhere—from states like Florida, Missouri, Texas, and Utah, to countries like the United Kingdom, Australia, and Indonesia. 

Instead of realizing that mass surveillance and age gates aren't exactly crowd favorites, Utah lawmakers have decided that VPNs themselves are the real issue.

On May 6, 2026, Utah will become, to EFF’s knowledge, the first state in the nation to target the use of VPNs to avoid legally mandated age-verification gates. While advocates in states like Wisconsin successfully forced the removal of similar provisions due to constitutional and technical concerns, Utah is proceeding with a mandate that threatens to significantly undermine digital privacy rights. 

What the Bill Does

Formally known as the “Online Age Verification Amendments,” Senate Bill 73 (SB 73) was signed by Governor Spencer Cox on March 19, 2026. While the majority of the bill consists of provisions related to a 2% tax on revenues from online adult content that is set to take effect in October, one of the more immediate concerns for EFF is the section regulating VPN access, which goes into effect this coming Wednesday.

The VPN Provisions

The new law explicitly addresses VPN use in Section 14, which amends Section 78B-3-1002 of existing Utah statutes in two primary ways:

  1. Regulation based on physical location: Under the law, an individual is considered to be accessing a website from Utah if they are physically located there, regardless of whether they use a VPN, proxy server, or other means to disguise their geographic location.
  2. Ban on sharing VPN instructions: Commercial entities that host "a substantial portion of material harmful to minors" are now prohibited from facilitating or encouraging the use of a VPN to bypass age checks. This includes providing instructions on how to use a VPN or providing the means to circumvent geofencing.

By holding companies liable for verifying the age of anyone physically in Utah, even those using a VPN, the law creates a massive "liability trap." Just like we argued in the case of the Wisconsin bill, if a website cannot reliably detect a VPN user's true location and the law requires it to do so for all users in a particular state, then the legal risk could push the site to either ban all known VPN IPs, or to mandate age verification for every visitor globally. This would subject millions of users to invasive identity checks or blocks to their VPN use, regardless of where they actually live. 

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HELP US STOP THESE VPN BILLS ACROSS THE COUNTRY

"Don't Ask, Don't Tell"

In practice, SB 73 is different from the Wisconsin proposal in that it stops short of a total VPN ban. Instead, it discourages using VPNs by imposing the liability described above and by muzzling the websites themselves from sharing information about VPNs. This raises significant First Amendment concerns, as it prevents platforms from providing basic, truthful information about a lawful privacy tool to their users. 

Unlike previous drafts seen in other states, SB 73 doesn't explicitly ban the use of a VPN. Under a "don't ask, don't tell" style of enforcement, websites likely only have an obligation to ask for proof of age if they actually learn that a user is physically in Utah and using a VPN. If a site doesn’t know a user is in Utah, their broader obligation to police VPNs remains murky. So, while SB 73 isn’t as extreme as the discarded Wisconsin proposal, it remains a dangerous precedent.

Technical Feasibility

Then there is also the question of technical feasibility: Blocking all known VPN and proxy IP addresses is a technical whack-a-mole that likely no company can win. Providers add new IP addresses constantly, and no comprehensive blocklist exists. Complying with Utah’s requirements would require impossible technical feats.

The internet is built to, and will always, route around censorship. If Utah successfully hampers commercial VPN providers, motivated users will transition to non-commercial proxies, private tunnels through cloud services like AWS, or residential proxies that are virtually indistinguishable from standard home traffic. These workarounds will emerge within hours of the law taking effect. Meanwhile, the collateral damage will fall on businesses, journalists, and survivors of abuse who rely on commercial VPNs for essential data security.

These provisions won't stop a tech-savvy teenager, but they certainly will impact the privacy of every regular Utah resident who just wants to keep their data out of the hands of brokers or malicious actors.

Uncharted Territory

Lawmakers have watched age-verification mandates fail and, instead of reconsidering the approach, have decided to wage war on privacy itself. As the Cato Institute states: 

“The point is that when an internet policy can be avoided by a relatively common technology that often provides significant privacy and security benefits, maybe the policy is the problem. Age verification regimes do plenty of damage to online speech and privacy, but attacking VPNs to try to keep them from being circumvented is doubling down on this damaging approach."

Attacks on VPNs are, at their core, attacks on the tools that enable digital privacy. Utah is setting a precedent that prioritizes government control over the fundamental architecture of a private and secure internet, and it won’t stop at the state’s borders. Regulators in countries outside the U.S. are still eyeing VPN restrictions, with the UK Children’s Commissioner calling VPNs a “loophole that needs closing” and the French Minister Delegate for Artificial Intelligence and Digital Affairs saying VPNs are “the next topic on my list” after the country enacted a ban on social media for kids under 15.

As this law goes into effect, we are entering uncharted territory. Lawmakers who can’t distinguish between a security tool and a "loophole" are now writing the rules for one of the most complex infrastructures on Earth. And we can assure that the result won't be a safer internet, only an increasingly less private one.

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Fast16 Malware

Researchers have reverse-engineered a piece of malware named Fast16. It’s almost certainly state-sponsored, probably US in origin, and was deployed against Iran years before Stuxnet:

“…the Fast16 malware was designed to carry out the most subtle form of sabotage ever seen in an in-the-wild malware tool: By automatically spreading across networks and then silently manipulating computation processes in certain software applications that perform high-precision mathematical calculations and simulate physical phenomena, Fast16 can alter the results of those programs to cause failures that range from faulty research results to catastrophic damage to real-world equipment.”

Another news article.

Lots of interesting details at the links.

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What is online gambling spam and what can I do about it?

What is online gambling spam and what can I do about it?

Online gambling spam thrives on dreams of easy money and high stakes. Beating the house at an exotic casino. Splitting sevens. Going all in on the flop. A baccarat dealer calling La grande! For most people, though, the reality falls far short of Monte Carlo and an Aston Martin.

So they turn to online gambling. And bad actors harness that allure to create their scams. They think they’re buying credits at a hot new online casino.

Continue reading What is online gambling spam and what can I do about it? at Sucuri Blog.

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My Website Is Hosting a Phishing Page – Now What?

My Website Is Hosting a Phishing Page – Now What?

Most phishing advice is written for the person staring at a suspicious email. This guide is for the other kind of victim: The website owner whose legitimate site has been quietly turned into the attacker’s weapon.

You didn’t send the message or build the fake login page. You just woke up to a browser warning, a suspended hosting account, or a polite note from someone’s security team asking why your domain is requesting Apple ID credentials.

Continue reading My Website Is Hosting a Phishing Page – Now What? at Sucuri Blog.

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WordPress DDoS Protection: How to Keep Your Site Online

WordPress DDoS Protection: How to Keep Your Site Online

WordPress powers over 40% of the web, which makes it one of the most attractive targets for Distributed Denial of Service (DDoS) attacks. If your site goes down for an hour, you lose revenue, search rankings, and visitor trust. If it goes down repeatedly, you lose much more.

A DDoS attack floods your website with fake traffic until it slows to a crawl or crashes entirely. Unlike hacks that steal data, DDoS attacks are about disruption.

Continue reading WordPress DDoS Protection: How to Keep Your Site Online at Sucuri Blog.

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