As they work to fend off the rapidly expanding number of attempts by threat actors to exploit the dangerous React2Shell vulnerability, security teams are learning of two new flaws in React Server Components that could lead to denial-of-service attacks or the exposure of source code.

The post React Fixes Two New RSC Flaws as Security Teams Deal with React2Shell appeared first on Security Boulevard.

Huntress threat researchers are tracking a ClickFix campaign that includes a variant of the scheme in which the malicious code is hidden in the fake image of a Windows Update and, if inadvertently downloaded by victims, will deploy the info-stealing malware LummaC2 and Rhadamanthys.

The post Attackers are Using Fake Windows Updates in ClickFix Scams appeared first on Security Boulevard.

Ahead of the holiday season, people who have bought cheap Amazon Fire TV Sticks or similar devices online should be aware that some of them could let cybercriminals access personal data, bank accounts, and even steal money.

BeStreamWise, a UK initiative established to counter illegal streaming, says the rise of illicit streaming devices preloaded with software that bypasses licensing and offers “free” films, sports, and TV comes with a risk.

Dodgy stick streaming typically involves preloaded or modified devices, frequently Amazon Fire TV Sticks, sold with unauthorized apps that connect to pirated content streams. These apps unlock premium subscription content like films, sports, and TV shows without proper licensing.

The main risks of using dodgy streaming sticks include:

• Legal risks: Mostly for sellers, but in some cases for users too
• Exposure to inappropriate content: Unregulated apps lack parental controls and may expose younger viewers to explicit ads or unsuitable content.
• Growing countermeasures: Companies like Amazon are actively blocking unauthorized apps and updating firmware to prevent illegal streaming. Your access can disappear overnight because it depends on illegal channels.
• Malware: These sticks, and the unofficial apps that run on them, often contain malware—commonly in the form of spyware.

BeStreamWise warns specifically about “modded Amazon Fire TV Sticks.” Reporting around the campaign notes that around two in five illegal streamers have fallen prey to fraud, likely linked to compromised hardware or the risky apps and websites that come with illegal streaming.

According to BeStreamWise, citing Dynata research:

“1 in 3 (32%) people who illegally stream in the UK say they, or someone they know, have been a victim of fraud, scams, or identity theft as a result.”

Victims lost an average of almost £1,700 (about $2,230) each. You could pay for a lot of legitimate streaming services with that. But it’s not just money that’s at stake. In January, The Sun warned all Fire TV Stick owners about an app that was allegedly “stealing identities,” showing how easily unsafe apps can end up on modified devices.

And if it’s not the USB device that steals your data or money, then it might be the website you use to access illegal streams. FACT highlights research from Webroot showing that:

“Of 50 illegal streaming sites analysed, every single one contained some form of malicious content – from sophisticated scams to extreme and explicit content.”

So, from all this we can conclude that illegal streaming is not the victimless crime that many assume it is. It creates victims on all sides: media networks lose revenue and illegal users can lose far more than they bargained for.

How to stay safe

The obvious advice here is to stay away from illegal streaming and be careful about the USB devices you plug into your computer or TV. When you think about it, you’re buying something from someone breaking the law, and hoping they’ll treat your data honestly.

There are a few additional precautions you can take though:

• Disable auto-run or autoplay features on your computer before inserting a USB stick. This stops programs on the USB from launching automatically.
• Mount the USB device in read-only mode if your operating system supports it (especially on Linux). This prevents any unwanted actions.
• Use an up-to-date anti-malware solution to scan the  external drive with a Custom scan. 

If you have already used a USB device or visited a website that you don’t trust:

• Update your anti-malware solution.
• Disconnect from the internet to prevent any further data being sent.
• Run a full system scan for malware.
• Monitor your accounts for unusual activity.
• Change passwords and/or enable multifactor authentication (MFA/2FA) on the important ones.

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Cybersecurity risks should never spread beyond a headline. Protect your, and your family’s, personal information by using identity protection.

Early on in 2025, I described how criminals used fake CAPTCHA sites and a clipboard hijacker to provide instructions for website visitors that would effectively infect their own machines with an information stealer known as the Lumma Stealer.

ClickFix is the name researchers have since given to this type of campaign—one that uses the clipboard and fake CAPTCHA sites to trick users into running malicious commands themselves.

Later, we found that the cybercriminals behind it seemed to be running some A/B tests to figure out which infection method worked best: ClickFix, or the more traditional file download that disguises malware as a useful application.

The criminals probably decided to go with ClickFix, because they soon came up with a campaign that targeted Mac users to spread the infamous Atomic Stealer.

Now, as reported by researchers from Push Security, the attackers behind ClickFix have tried to make the campaign more “user-friendly.”  The latest fake CAPTCHA pages include embedded video tutorials showing exactly how to run the malicious code.

The site automatically detects the visitor’s operating system and provides matching instructions, copying the right code for that OS straight to the clipboard—making typos less likely and infection more certain.

A countdown timer adds urgency, pressuring users to complete the “challenge” within a minute. When people rush instead of thinking things through, social engineering wins.

Unsurprisingly, most of these pages spread through SEO-poisoned Google search results, although they also circulate via email, social media, and in-app ads too.

How to stay safe

With ClickFix running rampant—and it doesn’t look like it’s going away anytime soon—it’s important to be aware, careful, and protected.

• Slow down. Don’t rush to follow instructions on a webpage or prompt, especially if it asks you to run commands on your device or copy-paste code. Attackers rely on urgency to bypass your critical thinking, so be cautious of pages urging immediate action. Sophisticated ClickFix pages add countdowns, user counters, or other pressure tactics to make you act quickly.
• Avoid running commands or scripts from untrusted sources. Never run code or commands copied from websites, emails, or messages unless you trust the source and understand the action’s purpose. Verify instructions independently. If a website tells you to execute a command or perform a technical action, check through official documentation or contact support before proceeding.
• Limit the use of copy-paste for commands. Manually typing commands instead of copy-pasting can reduce the risk of unknowingly running malicious payloads hidden in copied text.
• Secure your devices. Use an up-to-date real-time anti-malware solution with a web protection component.
• Educate yourself on evolving attack techniques. Understanding that attacks may come from unexpected vectors and evolve helps maintain vigilance. Keep reading our blog!

Pro tip: Did you know that the free Malwarebytes Browser Guard extension warns you when a website tries to copy something to your clipboard?

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Cybersecurity risks should never spread beyond a headline. Keep threats off your devices by downloading Malwarebytes today.