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Browser extensions put millions of Google Chrome users at risk

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Browser extensions put millions of Google Chrome users at risk

Browser extensions can be a great way to boost your productivity while browsing. Chrome, which is the most popular browser out there, supports a wide range of extensions, and so do other Chromium-based browsers. However, these extensions are not always beneficial. While many are helpful for blocking ads, finding the best deals or checking grammar errors, some can end up doing more harm than good.

I recently reported on a group of malicious extensions that were stealing user data, and now a new report has flagged 35 more suspicious ones. These browser extensions request unnecessary permissions and have been reported to collect and share everything you do online.

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A man using Google Chrome browser on his laptop. (Kurt “CyberGuy” Knutsson)

Sketchy extensions in the wild

A recent investigation by John Tuckner, founder of Secure Annex, revealed concerns about 35 Chrome extensions, posing potential privacy and security risks. These extensions, many unlisted on the Chrome Web Store, were collectively installed over 4 million times. 

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Many of these sketchy extensions presented themselves as tools for search assistance, ad-blocking, security monitoring or extension scanning but shared a connection to a single, unused domain, suggesting coordinated behavior. They all use the same code patterns, connect to some of the same servers and require the same list of sensitive systems permissions, including the ability to interact with web traffic on all URLs visited, access cookies, manage browser tabs and execute scripts. 

What’s more concerning is that at least 10 of these extensions carried Google’s “Featured” badge, implying vetting for trustworthiness. This raises questions about Google’s review process, as the badge suggests compliance with high standards for user experience, privacy and security.

A hacker at work. (Kurt “CyberGuy” Knutsson)

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Why are these extensions bad?

The main concern is the level of access these extensions quietly request and how they use it. With permissions to read tabs, access cookies, intercept web requests and inject scripts into pages, they can monitor nearly everything you do in your browser. This includes tracking your browsing activity, observing login sessions and altering the content of websites you visit, all without your knowledge.

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These extensions are not simply misconfigured tools. They appear to be intentionally designed with surveillance in mind. Many store their configuration data locally, which allows remote servers to update their behavior at any time. This setup is commonly seen in spyware, where changes can be made after installation without alerting the user. The code is heavily obfuscated, making it difficult for researchers to understand what the extensions are actually doing.

In some cases, the extensions appear to do nothing at all when clicked. However, they continue to send data in the background. For instance, the Fire Shield Extension Protection remained inactive until the researcher manually triggered it with a specific extension ID. Only then did it begin to transmit browsing activity and other data, revealing behavior that would be hard for an average user to detect.

A person working on their laptop. (Kurt “CyberGuy” Knutsson)

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The 35 extensions to delete right now

The 35 extensions are not publicly searchable on the Chrome Web Store, meaning they can only be installed via direct URLs. The full list of extensions is:

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  1. Choose Your Chrome Tools
  2. Fire Shield Chrome Safety
  3. Safe Search for Chrome
  4. Fire Shield Extension Protection
  5. Browser Checkup for Chrome by Doctor
  6. Protecto for Chrome
  7. Unbiased Search by Protecto
  8. Securify Your Browser
  9. Web Privacy Assistant
  10. Securify Kid Protection
  11. Bing Search by Securify
  12. Browse Securely for Chrome
  13. Better Browse by SecurySearch
  14. Check My Permissions for Chrome
  15. Website Safety for Chrome
  16. MultiSearch for Chrome
  17. Global search for Chrome
  18. Map Search for Chrome
  19. Watch Tower Overview
  20. Incognito Shield for Chrome
  21. In Site Search for Chrome
  22. Privacy Guard for Chrome
  23. Yahoo Search by Ghost
  24. Private Search for Chrome
  25. Total Safety for Chrome
  26. Data Shield for Chrome
  27. Browser WatchDog for Chrome
  28. Incognito Search for Chrome
  29. Web Results for Chrome
  30. Cuponomia – Coupon and Cashback
  31. Securify for Chrome
  32. Securify Advanced Web Protection
  33. News Search for Chrome
  34. SecuryBrowse for Chrome
  35. Browse Securely for Chrome

How to remove an extension from Google Chrome on desktop

If you have installed one of the above-mentioned extensions on your browser, remove it as soon as possible. To remove an extension from Google Chrome on a desktop, follow these steps:

  • Open Chrome and click the icon that looks like a piece of a puzzle. You’ll find it in the top-right corner of the browser
  • You can see all the active extensions now. Click the three-dots icon next to the extension you want to remove and select Remove from Chrome
  • Click Remove to confirm

Steps to remove an extension from Google Chrome. (Kurt “CyberGuy” Knutsson)

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5 ways to stay safe from sketchy extensions

If you’re worried about the above extensions, here are five ways to safeguard your sensitive information and maintain your online privacy.

1) Keep your browser up to date: Chrome gets regular updates that get rid of most security issues. Make sure you turn on automatic updates for your browser (e.g., Chrome, Firefox, Edge) so you’re always running the latest version without thinking about it. See my guide on keeping your devices and apps updated for more information.

2) Install extensions only from trusted sources: Official browser stores like the Chrome Web Store have rules and scans to catch bad actors. They’re not perfect, but they are still a better option when compared to a random website on the internet. Extensions from unknown websites or third-party downloads are far more likely to hide malware or spyware. 

3) Have strong antivirus software: A good antivirus can warn you before you install malicious software, such as sketchy browser extensions. It can also alert you to phishing emails and ransomware scams, helping keep your personal information and digital assets safe. Get my picks of the best 2025 antivirus protection winners for your Windows, Mac, Android and iOS devices.

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4) Be skeptical of extensions requesting unnecessary access: Some extensions overreach on purpose. A calculator tool asking for your browsing history or a weather app wanting your login data is a huge red flag.

Before installing, ask, “Does this permission match the extension’s job?” If the answer’s no, don’t install it. Watch out for broad permissions like “Read and change all your data on websites you visit” unless it’s clearly justified (e.g., a password manager). If an update suddenly adds new permission requests, dig into why. It might mean the extension has been sold or hacked.

5) Change your passwords and do it safely: If you’ve ever saved passwords in your browser (e.g., via Chrome’s built-in password manager or the “Save Password” prompt), those credentials could be at risk if a malicious extension was installed. These built-in managers store passwords locally or in your Google, Microsoft or Firefox account, and a compromised browser can give bad actors a way in.

This doesn’t typically apply to dedicated password manager extensions, which encrypt your data independently and don’t rely on browser storage. However, if you’re unsure whether an extension has been compromised, it’s always smart to update your master password and enable two-factor authentication. 

For maximum safety, change your most important passwords (email, bank, shopping, cloud services) from a different, secure device, such as your phone or another computer, where the questionable extension was never installed. Avoid using the same browser that may have been exposed. Then consider switching to a password manager to create and store strong, unique logins going forward. I’ve reviewed the top options in my best password managers of 2025 guide. See which one fits your needs best.

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Kurt’s key takeaway

The fact that several of these extensions carried Google’s own “Featured” badge should serve as a wake-up call. It points to a serious lapse in oversight and raises concerns about how thorough Chrome’s extension review process actually is. When millions of users unknowingly install spyware under the impression that it has been vetted and approved, the issue is no longer just about bad actors. It reflects a deeper failure within the platform itself. Google needs to take stronger responsibility by improving transparency and tightening its review standards. 

Do you think browser makers like Google should be held more accountable for what gets published in their stores? Let us know by writing us at Cyberguy.com/Contact

For more of my tech tips and security alerts, subscribe to my free CyberGuy Report Newsletter by heading to Cyberguy.com/Newsletter

Ask Kurt a question or let us know what stories you’d like us to cover.

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Technology

The Iranian women Trump ‘saved’ from execution are simultaneously real and AI-manipulated

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The Iranian women Trump ‘saved’ from execution are simultaneously real and AI-manipulated

Only the night before, he had posted on Truth Social about the imminent executions of these women, quoting a screenshot that included a collage of eight glamorously backlit, soft-focus portraits. The photos of the women were immediately accused of being AI-generated. “Trump is begging Iranian leaders to not execute 8 AI-generated women. This is the funniest thing I’ve ever seen,” said one viral X post.

On top of that, almost immediately after Trump’s announcement, Mizan, an Iranian state news agency, called the president a liar. “Last night, Donald Trump, citing a completely false news story, called on Iran to overturn the death sentences of eight women.” Mizan said that some of the women had already been released and others were facing prison time but not execution, and furthermore said that Tehran had made no concessions — presumably, the status of the women has not changed.

The X account for the Iranian embassy in South Africa, perhaps the most relentless shitposter among Iran’s state-affiliated accounts, was quick to pile on by generating its own set of eight women:

The collage that Trump posted is, at the very least, AI-modified, Mahsa Alimardani, the associate director of the Technology Threats & Opportunities program at WITNESS, told The Verge. But the women themselves are real. The woman in the top right corner of the collage is Bita Hemmati, whose photograph appeared in several news stories in various right-leaning news outlets last week. Hemmati is confirmed to have received a death sentence issued by Branch 26 of the Tehran Revolutionary Court for “operational action for the hostile government of the United States and hostile groups.”

Alimardani named six of the women (Bita Hemmati, Mahboubeh Shabani, Venus Hossein-Nejad, Golnaz Naraghi, Diana Taherabadi, Ghazal Ghalandri), and said that the identities of the final two (said to be Panah Movahedi and Ensieh Nejati) were still unverified. The six verified women participated in protests against the government in January. Aside from Hemmati, none of the other women are reported to have received death sentences.

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It’s not surprising that Trump has a careless disregard for the truth; it’s not surprising, either, for the Iranian regime to fudge the details to suit its own narrative, or to make light of real political prisoners in order to dunk on the United States.

The additional wrinkle is that the account mocking Trump for coming to the rescue of “8 AI-generated women” is the very same one that landed South Korean president Lee Jae-myung in hot water when he quoted a misleading labeled video posted by that account. Israeli officials have accused the account of being “well-known for spreading disinformation.” The case of the sketchy Lee Jae-myung quote-post is a story of mingled truth and misinformation, where the post got facts very wrong, but the video — of Israeli Defense Forces soldiers shoving a limp body off a rooftop in Gaza — was real, documenting an event that possibly implicates Israeli forces in a violation of international law.

The case of the eight Iranian protesters also features that same mingling of fact and fiction into a fuzzy distortion that fuels an endless disputation of real human rights violations. Their lives have been reduced to glossy pixels and quote-dunks, the stuff of propaganda and parody. While known liars fight with each other on the internet about who these women are and what will happen to them, they — verifiably six of them, at least — remain real people who exist beyond the Iranian internet blackout.

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Booking.com data breach exposes traveler data to scams

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Booking.com data breach exposes traveler data to scams

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You probably didn’t expect a travel booking platform to send you into a security spiral. Yet here we are.

Booking.com confirmed that hackers may have accessed customer data, including names, email addresses, phone numbers and booking details. That is enough information to make scam messages look real.

If you’ve booked a hotel or rental through the platform, this is worth your attention.

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Booking.com says hackers may have accessed customer names, emails, phone numbers and reservation details. The breach could make phishing messages look far more convincing. (KairosDee/Getty Images)

What happened in the Booking.com data breach

The company sent email notifications to affected customers after detecting “suspicious activity involving unauthorized third parties” accessing guest booking information. That’s the corporate way of saying someone got in who shouldn’t have been there.

One user shared the full notification on Reddit, where dozens of others said they received the same message. That suggests this was not an isolated case. The notice warned that anything customers “may have shared with the accommodation” could also have been exposed, meaning the breach went beyond basic account data.

What data was exposed in the Booking.com breach

Booking.com confirmed that financial information was not accessed. Physical home addresses were also not part of the breach, according to the company. So no, someone doesn’t have your credit card number or home address from this incident.

What they do potentially have: your name, email address, phone number and the details of your reservation. That’s enough to craft a convincing phishing message, which some hackers may already be doing.

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“At Booking.com, we are dedicated to the security and data protection of our guests,” a Booking.com spokesperson said in a statement to CyberGuy. “We recently noticed some suspicious activity involving unauthorized third parties being able to access some of our guests’ booking information, which may include booking details, names, email addresses and phone numbers and anything that travelers may have shared with the accommodation.”

“Financial information was not accessed from Booking.com’s systems, nor were guests’ physical addresses,” the spokesperson continued. “Upon discovering the activity, we took action to contain the issue. We have updated the PIN number for these reservations and informed our guests.”

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A Booking.com breach exposed personal and reservation data that scammers can use to craft realistic fraud attempts. (Annette Riedl/picture alliance)

How scammers are using stolen booking data

A user who posted the notification on Reddit said that two weeks before receiving it, they got a phishing message on WhatsApp that included their real booking details and personal information. That timing matters. It suggests hackers may have already been using the data before many customers were notified.

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It is not clear whether that earlier phishing attempt is directly tied to this specific breach, but it shows how detailed booking information can be used in targeted scams.

That is what makes this breach more dangerous than it first appears. When scammers know where you are staying and when, they can create messages that feel legitimate. A fake alert about a problem with your reservation or a request to confirm payment details suddenly looks real.

How past incidents highlight potential risks

This breach did not happen in a vacuum. In 2024, hackers infected computers at multiple hotels with a type of consumer-grade spyware known as stalkerware. In one documented case, a hotel employee was logged into their Booking.com admin portal when the software captured a screenshot of the screen, exposing visible customer data.

That detail points to a broader issue. In some cases, vulnerabilities may exist not just within a platform, but across the hotels and systems connected to it. The current breach may follow a similar pattern, though the company has not confirmed how the unauthorized access occurred.

To put the scale in context, Booking.com says 6.8 billion bookings have been made through the platform since 2010. Even a small percentage of affected users represents a large number of people.

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NEW FBI WARNING REVEALS PHISHING ATTACKS HITTING PRIVATE CHATS

A Booking.com breach exposed personal and reservation data that scammers can use to craft realistic fraud attempts. Security experts warn travelers to verify any message about their stay. (martin-dm/Getty Images)

Ways to stay safe after the Booking.com breach

You don’t have to swear off travel apps to protect yourself. A few targeted steps go a long way.

1) Check for an official notification

Check your email for a message from Booking.com. If you received one, take it seriously rather than filing it away. The company says it has updated PINs for affected reservations, but your account itself may still need attention.

2) Update your password now

Change your Booking.com password, especially if you reuse it anywhere else. Credential stuffing attacks are common after breaches, and reused passwords make it easy for hackers to break into other accounts. A password manager can help you create and store strong, unique passwords so you are not relying on the same one across multiple sites. Check out the best expert-reviewed password managers of 2026 at Cyberguy.com.

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3) Turn on two-factor authentication

Enable two-factor authentication (2FA) if you haven’t already. It adds a step, but it also blocks access even if someone has your password.

4) Consider identity theft protection

Even though financial data was not accessed, exposed personal details can still be used in scams or identity theft attempts. An identity protection service can monitor your information, alert you to suspicious activity and provide support if your identity is compromised. See my tips and best picks on Best Identity Theft Protection at Cyberguy.com.

5) Watch for highly targeted phishing messages

Be skeptical of any message that references your booking details, whether it arrives by email, text or WhatsApp. Legitimate companies rarely ask you to click a link and re-enter payment information. Hackers with your booking data can write convincing fakes that look urgent.

6) Verify bookings through official channels

If you get a message about your reservation, do not click the link. Open the Booking.com app or type the website address manually. You can also contact the hotel directly using the number listed on its official website.

7) Add a safety net in case you click something malicious

If you accidentally click a suspicious link, strong antivirus software can help detect malicious websites or downloads before they cause damage. Look for tools that offer real-time protection and phishing detection, not just basic virus scans. Get my picks for the best 2026 antivirus protection winners for your Windows, Mac, Android & iOS devices at Cyberguy.com.

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8) Limit how your personal data is exposed online

Data brokers collect and sell personal details like your phone number and email address. That makes it easier for scammers to connect stolen booking data to a real person. Removing your information from these sites with a data removal service can reduce how often you are targeted. 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.

9) Report anything suspicious quickly

If you receive a phishing attempt that includes your real reservation details, contact Booking.com directly and report the message to your phone carrier or email provider. Reporting helps shut down scams faster.

Kurt’s key takeaways

Data breaches at major travel platforms are uncomfortable precisely because travel feels personal. Your itinerary, your accommodation and your plans are wrapped up in those booking details, and now someone else may have a copy. The good news is that financial information and home addresses were not part of this breach. The bad news is that the stolen data is detailed enough to be weaponized in targeted phishing attacks, and there’s evidence that it already has been. Booking.com updated its customers, reset PINs for affected reservations and publicly confirmed the incident. That’s more transparency than many companies offer. But the fact that users were receiving phishing messages on WhatsApp two weeks before the formal notification went out is worth sitting with. You can’t control whether the platform you use gets breached. You can control whether you’re an easy target once your data is out there.

How much responsibility should companies like Booking.com take when your personal data fuels scams? Let us know by writing to us at Cyberguy.com.

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Copyright 2026 CyberGuy.com. All rights reserved.

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It’s amazing how good Alienware’s $350 OLED monitor is

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It’s amazing how good Alienware’s 0 OLED monitor is

I’ve recommended several OLED gaming monitors to readers over the years, and I’ve finally taken my own advice to buy one. Alienware’s new 27-inch 1440p QD-OLED has all the features that I want and a low $350 price that was too tempting to ignore.

The AW2726DM model has five things that make it stand out for the price: a 1440p QD-OLED screen with lush contrast, a fast 240Hz refresh rate, a semi-glossy screen coating to enhance details, a low-profile design without flashy RGB LEDs, and a great warranty (three years with coverage for burn-in).

I’ve been using Alienware’s new monitor for a couple days, and I’ve already spent hours with it playing Marathon. It was my first opportunity to see Bungie’s new first-person extraction shooter in its full HDR glory, and I can never go back. Switching on HDR wasn’t automatic, though it already looked so much better than my IPS panel without being activated.

Enabling it transformed how Marathon looked for the better, but made everything else about the OS look pretty washed-out. It’s a Windows issue, not an Alienware issue. It’s easy to enable HDR every time I launch a game and disable it afterward with the Windows + Alt + B keyboard shortcut, but unfortunately triggers HDR for all connected displays. This includes my IPS monitor that imbues everything with a terrible gray hue when HDR is on. So, using the system settings is the best way to adjust HDR for just the QD-OLED.

I landed on this QD-OLED after having spent a ton of time researching pricier models. The unanimous takeaway from reviewers was that LG’s Tandem RGB WOLED panels are some of the brightest out there, but also tend to exhibit lousy gray uniformity in dark scenes. QD-OLED monitors, on the other hand, offer slightly better contrast than WOLED and don’t suffer from those same uniformity issues. However, blacks sometimes appear as dark purple in bright rooms on QD-OLED panels, meaning they’re ideal for rooms that don’t have a bunch of light bouncing around.

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There’s no perfect choice, and honestly I got tired of doing research, so I jumped in with the cheapest OLED. I’m glad that I did. Shopping for an OLED gaming monitor can be hard, but it can also be this easy. AOC makes a model that’s discounted to $339.99 at the time of publishing, and its specs are comparable.

As expected, the AW2726DM isn’t a cutting-edge monitor. Its QD-OLED panel isn’t as fast or as bright as some other pricier options, and it doesn’t have USB ports for connecting accessories. Considering its low price, it’s easy for me to overlook those omissions. I’d have a much harder time accepting them in a pricier display.

The fact that I mostly use my computer for text-based work at The Verge is what prevented me from upgrading to an OLED monitor. My 1440p IPS monitor is bright, it’s good at showing text clearly, and it has a fast refresh rate for gaming. Alienware’s QD-OLED is less bright, and some might be bothered by how text looks (I have to really squint to see the slight fringing from this QD-OLED’s subpixel layout). But I have a life outside of work, which includes playing a lot of PC games. That’s the slice of myself I bought this monitor for, and I’m so happy I did.

Photography by Cameron Faulkner / The Verge

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