Technology
Fake ad blocker breaks PCs in new malware extension scam
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Fake browser extensions are nothing new, but this one takes things a step further by deliberately breaking your computer to scare you into infecting it.
Security researchers have uncovered a malicious Chrome and Edge extension called NexShield that pretends to be a fast, privacy-friendly ad blocker. Once installed, it crashes your browser on purpose and then tricks you into “fixing” the problem by running dangerous commands on your own PC.
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MALICIOUS GOOGLE CHROME EXTENSIONS HIJACK ACCOUNTS
A fake Chrome and Edge extension called NexShield crashes browsers to trick users into running malicious commands. (Sina Schuldt/picture alliance via Getty Images)
How the NexShield ad blocker scam works
NexShield was promoted as a lightweight ad blocker supposedly created by Raymond Hill, the real developer behind the popular uBlock Origin extension. That claim was false, but it helped the extension look legitimate enough to spread through online ads and search results before it was taken down from the Chrome Web Store.
Once installed, NexShield immediately starts abusing Chrome or Edge in the background. Researchers at Huntress found that it opens endless internal browser connections until your system runs out of memory (via Bleeping Computer). Tabs freeze, CPU usage spikes, RAM fills up and the browser eventually hangs or crashes completely.
After you restart the browser, NexShield displays a scary pop-up warning that claims your system has serious security problems. When you click to “scan” or “fix” the issue, you’re shown instructions telling you to open Command Prompt and paste a command that’s already been copied to your clipboard.
That single paste is the trap. The command launches a hidden PowerShell script that downloads and runs malware. To make detection harder, the attackers delay the payload execution for up to an hour after installation, creating distance between the extension and the damage it causes.
Why this fake browser extension attack is especially dangerous
This campaign is a new variation of the well-known ClickFix scam, which relies on convincing you to run commands yourself. Huntress calls this version CrashFix because instead of faking a system failure, it causes a real one.
In corporate environments, the attack delivers a Python-based remote access tool called ModeloRAT. This malware allows attackers to spy on systems, run commands, change system settings, add more malware and maintain long-term access. Researchers say the threat group behind it, tracked as KongTuke, appears to be shifting focus toward enterprise networks where the payoff is higher.
Home users weren’t the primary target in this campaign, but that doesn’t mean they’re safe. Even if the final payload was unfinished for consumer systems, uninstalling the extension alone is not enough. Some malicious components can remain behind. The biggest danger here isn’t a browser bug. It’s trust. The attack works because it looks like a helpful fix from a trusted tool, and it pressures you to act quickly while your system feels broken.
“Microsoft Defender provides built in protections to help identify and stop malicious or unwanted browser extensions and the harmful behaviors associated with them,” Tanmay Ganacharya, VP of Microsoft Threat Protection, told CyberGuy. “Our security technologies are designed to detect and mitigate tactics like the ones described in this campaign, and they are continuously updated to help keep customers safe. We encourage consumers and organizations to follow our security best practices for reducing exposure to social engineering based threats. Guidance on strengthening your security posture against techniques like this can be found in our blog, Think Before You Click(Fix): Analyzing the ClickFix Social Engineering Technique, on the Microsoft Security blog.”
We also reached out to Google for comment.
7 steps you can take to stay safe from malicious browser extensions
A few smart habits and the right tools can dramatically reduce your risk, even when malicious extensions slip past official app stores.
1) Only install extensions from trusted publishers
Before installing any browser extension, check the publisher name, official website and update history. Reputable tools clearly identify their developer and have years of user reviews. Be cautious of “new” extensions that claim to come from well-known creators, especially if the name or branding looks slightly off.
2) Never run unknown commands
No legitimate browser extension will ever ask you to open Command Prompt or paste a command to fix an issue. That’s a massive red flag. If something breaks your browser and then tells you to run system commands, close it and seek help from a trusted source.
3) Use a strong antivirus
Strong antivirus software can detect malicious scripts, suspicious PowerShell activity and remote access tools like ModeloRAT. This is especially important because these attacks rely on delayed execution that basic defenses might miss.
The best way to safeguard yourself from malicious links that install malware, potentially accessing your private information, is to have strong antivirus software installed on all your devices. This protection can also alert you to phishing emails and ransomware scams, keeping your personal information and digital assets safe.
Get my picks for the best 2026 antivirus protection winners for your Windows, Mac, Android and iOS devices at Cyberguy.com.
MALICIOUS MAC EXTENSIONS STEAL CRYPTO WALLETS AND PASSWORDS
After freezing your browser, the rogue extension urges users to paste a PowerShell command that installs malware. (Annette Riedl/picture alliance via Getty Images)
4) Use a password manager to limit fallout
If malware gains access to your system, stored browser passwords are often the first target. A password manager keeps credentials encrypted and separate from your browser, reducing the risk of account takeover even if something slips through.
Next, see if your email has been exposed in past breaches. Our No. 1 password manager pick includes a built-in breach scanner that checks whether your email address or passwords have appeared in known leaks. If you discover a match, immediately change any reused passwords and secure those accounts with new, unique credentials.
Check out the best expert-reviewed password managers of 2026 at Cyberguy.com.
5) Keep Windows, Chrome and Edge fully updated
Security updates don’t just patch bugs. They also improve protection against malicious extensions, script abuse and unauthorized system changes. Turn on automatic updates so you’re not relying on memory to stay protected.
6) Consider an identity theft protection service
If malware ever runs on your system, assume personal data could be at risk. Identity protection services can monitor for misuse of your information, alert you early and help with recovery if fraud occurs.
Identity Theft companies can monitor personal information like your Social Security Number (SSN), phone number and email address, and alert you if it is being sold on the dark web or being used to open an account. They can also assist you in freezing your bank and credit card accounts to prevent further unauthorized use by criminals.
See my tips and best picks on how to protect yourself from identity theft at Cyberguy.com.
7) Reduce your online footprint with a data removal service
Many attacks become more effective when criminals already have your personal details. Data removal services help pull your information from broker sites, making it harder for attackers to craft convincing follow-up scams or targeted phishing.
While no service can guarantee the complete removal of your data from the internet, a data removal service is really a smart choice. They aren’t cheap, and neither is your privacy. These services do all the work for you by actively monitoring and systematically erasing your personal information from hundreds of websites. It’s what gives me peace of mind and has proven to be the most effective way to erase your personal data from the internet. By limiting the information available, you reduce the risk of scammers cross-referencing data from breaches with information they might find on the dark web, making it harder for them to target you.
Check out my top picks for data removal services and get a free scan to find out if your personal information is already out on the web by visiting Cyberguy.com.
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FAKE ERROR POPUPS ARE SPREADING MALWARE FAST
Security researchers say the NexShield ad blocker scam deliberately overloads memory to force a system crash. (Photo by Sebastian Gollnow/picture alliance via Getty Images)
Kurt’s key takeaway
Cybercriminals are getting better at blending technical tricks with psychological pressure. Instead of relying on exploits alone, they break things on purpose and wait for you to panic. If a browser extension crashes your system and then tells you to “fix” it by running commands, stop immediately. The safest response is not to fix the problem fast, but to question why you’re being asked to fix it at all.
How many browser extensions are installed on your computer right now? Let us know by writing to us at Cyberguy.com.
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Copyright 2026 CyberGuy.com. All rights reserved.
Technology
Valve says it’s ready to launch the Steam Machine this summer
Valve now says that the delayed Steam Machine PC and Steam Frame VR headset are set to launch sometime this summer. In a Thursday blog post detailing its Verified programs for both pieces of hardware, Valve concludes by saying that “We’re excited for players to try your titles on the new Steam hardware once they launch this summer.”
When the company originally announced the Machine and Frame alongside its new Steam Controller late last year, it said that it would start shipping the new gadgets in early 2026. But in February, the company announced that the ongoing memory and storage crunch had forced it to revisit its pricing and shipping plans. And in March, Valve said in a blog post that it would be “shipping all three products this year” — though that was after the company initially said in the post that “we hope to ship in 2026,” which it removed in an update.
Valve opted to release the Steam Controller on its own, putting it up for sale in early May. For the Machine and Frame, while “summer” isn’t exactly a specific date, it narrows the window for when the products might finally come out.
Ahead of actually launching the devices, Valve is redesigning the Steam store and sharing information about the Verified programs for the hardware so that developers can prepare their games. Like with the Steam Deck, if a game is verified for the Machine or the Frame, the badge signals that the game should work well without any tweaks from the user.
For the Machine, the requirements for a game to be verified are “nearly identical” to what they are for the Steam Deck. With the Machine being “roughly six times as powerful” as the Deck, in theory, many more games will be verified for it. Valve also says that it’s testing “every title on Machine that fell below our performance requirements on Deck.”
For the Frame, Valve’s verified badge will signify games that run well while being played natively on the headset — as opposed to games that work well streamed to the headset, which the Frame is also capable of. “Like Steam Deck Verified, the Steam Frame Standalone Verified program focuses on the experience customers will have with the device out-of-the-box in standalone mode,” Valve says.
Now, we just need Valve to share exactly when the Steam Machine and Steam Frame will be released and how much they might cost. After last week’s price hikes for the Steam Deck, I’m gearing up for sticker shock.
Technology
Are humanoid robots now coming for retail jobs?
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Humanoid robots just got another real job. This time, they are clocking in behind the scenes at a major retail operation. Figure AI has signed a commercial agreement with Catalyst Brands. That is the company behind JCPenney, Aéropostale, Brooks Brothers, Eddie Bauer, Lucky Brand and Nautica.
The first rollout begins at Catalyst’s Reno, Nevada Distribution Logistics Center. So, no, these robots are not greeting shoppers or folding jeans in the store aisle. At least not yet.
For now, they are heading into warehouse and supply chain work. Still, the announcement has some people worried. Many see humanoid robots entering a workplace and immediately wonder what happens to human jobs. That concern is fair.
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THE AI-POWERED ROBOT ARMY THAT PACKS YOUR GROCERIES IN MINUTES
Figure’s humanoid robots are starting behind the scenes in Catalyst Brands’ Reno warehouse, not on the store floor. (Figure AI)
Figure’s humanoid robots enter warehouse work
Catalyst Brands says Figure’s humanoid robots will help with supply chain work. The companies say the robots will focus on repetitive, physically demanding sorting and packing tasks. In other words, this starts with warehouse work that can wear people down over time. The robots will first assist with Catalyst’s Joey Pouch sorting system in Reno. That system helps with computerized induction, sorting and packing inside the facility. Catalyst says the Reno site also underwent a $40 million infrastructure update in 2024.
“As we invest in and scale our portfolio, this collaboration with Figure shows how emerging technologies can modernize our operations while strengthening our workforce,” said Marc Rosen, CEO of Catalyst Brands. “When we automate routine tasks, our associates can focus on higher-value work and better serve our customers across all our brands.”
So, this is happening behind the scenes in the warehouse, not on the store floor. That detail is important, especially because some online reactions made it sound like robots were already headed into retail stores. The announcement points to warehouse operations first. Still, warehouse jobs are real jobs. That is why this deal is getting so much attention.
Why the Figure AI and Catalyst Brands deal stands out
Catalyst Brands owns several major retail brands and operates a large retail network. Figure AI also describes this as a step toward deploying humanoid robots at scale, even though it has not said how many robots will be used.
There is also a financial connection behind the scenes. Brookfield is an investor in Figure AI and also has a stake in Catalyst Brands. Figure says this is the first commercial bridge between Figure and a Brookfield portfolio company.
If the robots perform well in Reno, the companies could look for more ways to use them across the business.
AI LAYOFFS MAY BE BACKFIRING ON COMPANIES
The robots will first assist with repetitive sorting and packing work inside Catalyst’s updated distribution center. (Figure AI)
What Figure AI has not revealed yet
The announcement leaves out several key details. We do not know how many robots Figure AI will deploy. We do not know the exact start date. We also do not know whether Catalyst is buying the robots, leasing them or using a robots-as-a-service model. The companies have also not said how many human roles could change because of the rollout.
Figure AI says the robots are being integrated into Catalyst’s distribution facility and will focus on physically demanding work. However, the release does not spell out the exact jobs the robots will handle day to day.
That missing information gives people room to worry. It also gives people room to guess. And online, people did both. Some thought humanoid robots were coming straight into stores. Others focused on the bigger fear, which is that robots could take over jobs that people depend on.
Why humanoid robots make workers nervous
The fear around this deal goes beyond one company. Workers have already watched companies use AI to cut costs, slow hiring and reorganize teams. Now, physical robots are entering spaces where people lift, sort, pack and move products. That feels different.
Figure AI and Catalyst say the robots can handle routine tasks and help associates shift toward higher-value work. That sounds promising. However, workers may hear a very different message. They may wonder who gets retrained. They may also wonder who gets replaced. Companies cannot brush off those concerns. If humanoid robots are coming into more workplaces, workers deserve clear answers.
JOBS THAT ARE MOST AT RISK FROM AI, ACCORDING TO MICROSOFT
The big question is whether humanoid robots will help workers handle tough warehouse tasks or eventually replace some of those jobs. (Figure AI)
Why retail companies want warehouse robots
Warehouse work can be tough on the body. People lift boxes, move products, repeat the same motions and race to keep up when orders spike. That is why retail companies are looking hard at automation.
Figure’s pitch is that humanoid robots can fit into places already built for people. They do not need a warehouse rebuilt from scratch. In theory, they can step into certain jobs and help with repetitive work.
For a retailer, that could mean products move faster, and workers face less physical strain. It could also help during busy shopping seasons, when distribution centers get slammed.
What to watch next with Figure AI robots
The next big signal will be whether Catalyst expands the robot program beyond Reno. A small rollout may be a learning test. A wider deployment would point to a much larger shift in how retailers move products.
Watch for details on robot count, job duties and worker impact. Those specifics will tell us more than anything else. Also, pay attention to how companies talk about employees. If they say robots will help workers move into better roles, they should explain exactly how that will happen. Workers deserve more than buzzwords.
What this means for you
These robots may start in a warehouse, but the ripple effect could eventually reach workers, shoppers and prices.
For shoppers, the upside is easy to see. If robots help move products faster, stores may have fewer empty shelves. Online orders could also move through warehouses more quickly.
For workers, it gets more complicated. Companies often say robots will take over the hardest tasks so people can move into better roles. That sounds good, but workers need more than a promise. They need training. They need clear answers. They also need to know whether a robot is there to help them or replace them.
And for the rest of us, this raises a bigger question. Are we comfortable with retailers using humanoid robots if it makes shopping faster or cheaper? Or do we want companies to prove that people are still part of the plan?
Kurt’s key takeaways
Figure AI’s deal with Catalyst Brands shows how quickly humanoid robots are entering our workplaces. For now, these robots are starting in a distribution center. They are not walking through the aisles at JCPenney. That distinction is important. Still, the bigger concern remains. People want to know whether these machines will help workers or slowly push them aside. Automation can reduce hard physical work. It can also create real fear when companies avoid direct answers. Humanoid robots may soon become a normal part of warehouse operations for retailers. The real test will be whether companies use them in a way that helps people, instead of treating people like a cost to cut.
Would you shop with a retailer that uses humanoid robots in its warehouses, or would that make you think twice? Let us know by writing to us at CyberGuy.com.
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Technology
Cyberdecks used to look like little laptops, but now they’re getting more personal
Tan and countless other DIYers are attracting millions of views showing off the personal computers they’ve built inside purses, jewelry boxes, toys, and old tech, hiding Raspberry Pi boards inside art projects.
Cyberdecks, but make it fashion
The colorful, quirky builds popping up across social media are a drastic shift away from the typical look the cyberdecks we’ve featured have had, which often consisted of a 3D-printed chassis or a rugged box like a Pelican case, usually with a cyberpunk-style design.
Inside, these homemade devices are essentially mini Linux computers for specific tasks, usually done offline, like reading, journaling, or listening to music. But now, a cyberdeck doesn’t have to look like a computer at all.
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