Technology
Malicious browser extensions hit 4.3M users
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A long-running malware campaign quietly evolved over several years and turned trusted Chrome and Edge extensions into spyware. A detailed report from Koi Security reveals that the ShadyPanda operation affected 4.3 million users who downloaded extensions later updated with hidden malicious code.
These extensions began as simple wallpaper or productivity tools that looked harmless. Years later, silent updates added surveillance functions that most users could not detect.
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THIS CHROME VPN EXTENSION SECRETLY SPIES ON YOU
Malicious extensions spread through trusted browsers and quietly collected user data for years. (Kurt “CyberGuy” Knutsson)
How the ShadyPanda campaign unfolded
The operation included 20 malicious Chrome extensions and 125 on the Microsoft Edge Add-ons store. Many first appeared in 2018 with no obvious warning signs. Five years later, the extensions began receiving staged updates that changed their behavior.
Koi Security found that these updates rolled out through each browser’s trusted auto-update system. Users did not need to click anything. No phishing. No fake alerts. Just quiet version bumps that slowly turned safe extensions into powerful tracking tools.
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WeTab functions as a sophisticated surveillance platform disguised as a productivity tool. (Koi)
What the extensions were doing behind the scenes
Once activated, the extensions injected tracking code into real links to earn revenue from user purchases. They also hijacked searches, redirected queries and logged data for sale and manipulation. ShadyPanda gathered an unusually broad range of personal information, including browsing history, search terms, cookies, keystrokes, fingerprint data, local storage, and even mouse movement coordinates. As the extensions gained credibility in the stores, the attackers pushed a backdoor update that allowed hourly remote code execution. That gave them full browser control, letting them monitor websites visited and exfiltrate persistent identifiers.
Researchers also discovered that the extensions could launch adversary-in-the-middle attacks. This allowed credential theft, session hijacking and code injection on any website. If users opened developer tools, the extensions switched into harmless mode to avoid detection. Google removed the malicious extensions from the Chrome Web Store. We reached out to the company, and a spokesperson confirmed that none of the extensions listed are currently live on the platform.
Meanwhile, a Microsoft spokesperson told CyberGuy, “We have removed all the extensions identified as malicious on the Edge Add-on store. When we become aware of instances that violate our policies, we take appropriate action that includes, but is not limited to, the removal of prohibited content or termination of our publishing agreement.”
Most of you will not need the full technical IDs used in the ShadyPanda campaign. These indicators of compromise are primarily for security researchers and IT teams. Regular users should focus on checking your installed extensions using the steps in the guide below.
You can review the full list of affected Chrome and Edge extensions to see every ID tied to the ShadyPanda campaign by clicking here and scrolling down to the bottom of the page.
How to check whether your browser contains these extension IDs
Here is an easy, step-by-step way for you to verify if any malicious extension IDs are installed.
For Google Chrome
Open Chrome.
Type chrome://extensions into the address bar.
Press Enter.
Look for each extension’s ID.
Click Details under any extension.
Scroll down to the Extension ID section.
Compare the ID with the lists above.
If you find a match, remove the extension immediately.
For Microsoft Edge
Open Edge.
Type edge://extensions into the address bar.
Press Enter.
Click Details under each extension.
Scroll to find the Extension ID.
If an ID appears in the lists, remove the extension and restart the browser.
183 MILLION EMAIL PASSWORDS LEAKED: CHECK YOURS NOW
Simple security steps can block hidden threats and help keep your browsing safer. (Kurt “CyberGuy” Knutsson)
How to protect your browser from malicious extensions
You can take a few quick actions that help lock down your browser and protect your data.
1) Remove suspicious extensions
Before removing anything, check your installed extensions against the IDs listed in the section above. Most of the malicious extensions were wallpaper or productivity tools. Three of the most mentioned are Clean Master, WeTab and Infinity V Plus. If you installed any of these or anything that looks similar, delete them now.
2) Reset your passwords
These extensions have access to sensitive data. Resetting your passwords protects you from possible misuse. A password manager makes the process easier and creates strong passwords for each account.
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 2025 at Cyberguy.com.
3) Use a data removal service to reduce tracking
ShadyPanda collected browsing activity, identifiers and behavioral signals that can be matched with data already held by brokers. A data removal service helps you reclaim your privacy by scanning people-search sites and broker databases to locate your exposed information and remove it. This limits how much of your digital footprint can be linked, sold or used for targeted scams.
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.
Get a free scan to find out if your personal information is already out on the web: Cyberguy.com.
4) Install strong antivirus software
An antivirus may not have caught this specific threat due to the way it operated. Still, it can block other malware, scan for spyware and flag unsafe sites. Many antivirus tools include cloud backup and VPN options to add more protection.
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 2025 antivirus protection winners for your Windows, Mac, Android & iOS devices at Cyberguy.com.
5) Limit your extensions
Each extension adds risk. Stick with known developers and search for recent reviews. If an extension asks for permissions it should not need, walk away.
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Kurt’s key takeaways
ShadyPanda ran for years without raising alarms and proved how creative attackers can be. A trusted extension can shift into spyware through a silent update, which makes it even more important to stay alert to changes in browser behavior. You protect yourself by installing fewer extensions, checking them from time to time and watching for anything that feels out of place. Small steps help lower your exposure and reduce the chances that hidden code can track what you do online.
Have you ever found an extension on your browser that you didn’t remember installing or one that started acting in strange ways? How did you handle it? Let us know by writing to us at Cyberguy.com.
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Copyright 2025 CyberGuy.com. All rights reserved.
Technology
Slay the Spire II is even better with a friend
Slay the Spire II launched in early access last week, and it’s already an excellent sequel to one of the best roguelikes of all time. In many ways, it’s very similar to its predecessor. Like Hades II and Hollow Knight: Silksong, Slay the Spire II mostly iterates on an already superb foundation. But it does add online co-op with up to four players. While multiplayer changes the familiar rhythms of Slay the Spire just a bit, it’s still a great way to tackle the arduous climb up the spire.
A round of Slay the Spire II plays essentially the same as the original: In each run, you navigate three different acts across a winding map, slowly making a build by crafting your deck and picking up various perk-giving relics, and fighting enemies, elites, and bosses along the way. Slay the Spire II retains the deliberate, turn-based style of play, meaning that when it’s your turn, you have as much time as you want to decide what to do. Since you can see exactly what your enemies are planning for their next turn, there’s a lot of strategy in deciding how much damage to do and how much defense you might need to set up. Multiplayer adds a slight twist: When it’s your turn, everyone can play simultaneously. That opens up all sorts of new opportunities for planning, but it also requires communication to make sure everyone is using their cards effectively.
My multiplayer partner was my wife, the biggest Slay the Spire fan I know, and on our second run we got a thrilling victory. I played the new Necrobinder character, a necromancer, while she played as the returning Silent, which can make decks built around flurries of shivs. Over the course of the run, we accidentally settled into a strategy where I focused on applying the Vulnerable status to as many enemies as possible before my wife would rain down shivs upon our foes.
Slay the Spire II doesn’t encourage teamwork only in battles. At a campfire rest stop, you can choose to mend a friend’s health to help them out. (Some of the new enemies are tough, so I’m glad this is an option.) You each get a vote on which path to take next on the map. Everyone can draw on the map, too — as I learned many times after seeing the doodles my wife made when I would spend too long in the shop.
Since we had to communicate so much, our winning run took about an hour and a half, slower than how fast I could blast through runs in the first game. When we finally defeated the Act 3 boss, though, it was even more satisfying than most of my solo wins because we did it together. My one complaint is that co-op requires you to each play online on your own copy of the game, and that, because there’s no couch co-op, we each had to play on separate devices even though we were sitting on the couch right next to each other.
Those are annoying tradeoffs, but multiplayer is such a fun addition to Slay the Spire that I don’t mind. I can’t wait to try another multiplayer run and see what challenges — and doodles — are in store for me.
Technology
Android fixes 129 security flaws in major phone update
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Most people never think about Android security updates until a headline like this appears. Suddenly, your phone, the device you use for messages, banking, photos and work, becomes part of a global cybersecurity story.
That is exactly what happened this week. Google released its latest Android security updates, and they fix a massive 129 vulnerabilities. Even more concerning, one of them is already being exploited by attackers.
The flaw targets a component connected to Qualcomm graphics hardware, and researchers say it has already been used in limited targeted attacks. If you use an Android phone, this is the kind of update you want installed as soon as possible.
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GOOGLE DISMANTLES 9M-DEVICE ANDROID HIJACK NETWORK
Google’s March Android security update fixes 129 vulnerabilities, including a zero-day flaw already exploited in targeted attacks. (Firdous Nazir/NurPhoto via Getty Images)
Android security flaw already targeted by attackers
One vulnerability in particular has security researchers paying close attention. The flaw is tracked as CVE-2026-21385. Google says there are signs it is already being used in targeted attacks. That makes it a zero-day vulnerability.
In simple terms, attackers discovered the flaw before many devices received a fix. According to Qualcomm, the problem is tied to the graphics processing component inside many of its chipsets. Specifically, the issue involves something called an integer overflow. That technical term means a calculation error can cause memory corruption inside the system. Once that happens, attackers may gain a foothold on the device.
Qualcomm says the flaw impacts 235 different chipsets, which means a large number of Android phones could be affected. Google’s Threat Analysis Group discovered the issue and reported it through coordinated disclosure practices. Qualcomm then worked with device makers to release patches.
Why the Android security vulnerability is dangerous
Several of the patched vulnerabilities allow attackers to execute code remotely or gain elevated privileges on a device. One issue inside the Android System component is especially concerning. Google says it could allow remote code execution without any user interaction.
That means an attacker may exploit the flaw without the victim tapping a link or installing an app. In cybersecurity terms, that type of vulnerability ranks among the most dangerous.
The March Android bulletin addresses ten critical flaws across the System, Framework and Kernel components. These parts sit at the core of Android, so any weakness there can ripple across millions of devices.
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Android users are urged to install the latest security patch as manufacturers roll out updates across devices. (Barrington Coombs/PA Images via Getty Images)
Why some Android phones get security updates faster
Google released two patch levels for this update:
- 2026-03-01 security patch level
- 2026-03-05 security patch level
The second update includes everything in the first, plus fixes for additional hardware components and third-party software. Google Pixel devices typically receive updates immediately. However, many Android users must wait longer.
Phone manufacturers such as Samsung, Motorola and OnePlus often test the patches before releasing them for specific models. Carriers may also delay updates while they verify compatibility. As a result, some users receive security patches quickly while others wait weeks.
How to protect your Android phone from security threats
Security vulnerabilities are a reality in modern software. The good news is that there are several simple steps that can greatly reduce your risk.
1) Install Android updates quickly
Check for updates regularly and install them as soon as they appear. On most devices, go to Settings, tap Security and privacy or Software update, then select Check for updates and install the latest version if one is available. Security updates often fix vulnerabilities that attackers may already be trying to exploit.
2) Avoid apps from unknown sources
Only download apps from trusted stores like Google Play. Third-party app stores pose a higher risk of malware.
3) Keep Google Play Protect enabled
Google Play Protect, which is built-in malware protection for Android devices, scans apps for malicious behavior and warns you if something suspicious appears. It also automatically removes known malware. However, it is important to note that Google Play Protect may not be enough. Historically, it isn’t 100% foolproof at removing all known malware from Android devices. Therefore, we recommend strong antivirus software because it adds another layer of protection by using deeper threat detection, real-time monitoring and broader malware databases that can catch suspicious apps or files that Google Play Protect may overlook. Get my picks for the best 2026 antivirus protection winners for your Windows, Mac, Android & iOS devices at Cyberguy.com
4) Use strong device security
Set a strong passcode on your phone and turn on fingerprint or face unlock if your device supports it. This helps keep strangers out of your phone if it is lost or stolen.
5) Be cautious with suspicious links
Many attacks still start with phishing messages. Avoid tapping unknown links in texts, emails, or social media messages.
YOUR PHONE SHARES DATA AT NIGHT: HERE’S HOW TO STOP IT
A critical Android zero-day tied to Qualcomm chipsets could allow attackers to gain a foothold on affected devices. (Donato Fasano/Getty Images)
The bigger picture behind Android security updates
This Android update also highlights how modern mobile security works behind the scenes. Google’s Threat Analysis Group frequently discovers vulnerabilities that may already be used in real-world attacks. Those findings trigger coordinated responses involving chip manufacturers, phone makers and security researchers. In this case, Qualcomm received the report in December and provided fixes to device makers in early 2026.
By the time the public bulletin arrived, patches were already moving through the Android ecosystem. The process may look slow from the outside. In reality, it involves dozens of companies working together to prevent widespread exploitation.
Kurt’s key takeaways
Security updates rarely feel exciting. Yet they play a critical role in protecting billions of smartphones around the world. This latest Android update proves that point clearly. A zero-day flaw tied to Qualcomm graphics hardware was already being targeted before many users even knew it existed. Installing updates quickly remains one of the simplest ways to protect your device and your personal data. Most of the time, the update only takes a few minutes. Those few minutes can block attacks that might otherwise compromise your phone. So the next time your Android device prompts you to install a security patch, the better question may be this:
When your phone asks for a security update, do you install it immediately or tap remind me later? Let us know by writing to us at Cyberguy.com
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Copyright 2026 CyberGuy.com. All rights reserved.
Technology
Apple smart home display rumors now point to a fall launch with iOS 27
The rumored “HomePod with a screen” we’ve heard so much about was reportedly lined up for launch in 2025, and then this spring, and now, according to the latest updates, it’s on the shelf until this fall. Leaker Kosutami posted as much on X last week, and today, Bloomberg reporter Mark Gurman followed up with similar information, saying its robot arm-equipped cousin is now planned for launch in 2027.
That was supposed to be ready by now, but it is now predicted to arrive later this year, along with the iPhone 18 Pro plus 2027 updates for iOS, macOS, and all the rest. He describes a silver aluminum-cased device with a 7-inch screen and USB-C power port running a version of tvOS 27, while new versions of the HomePod speaker and Apple TV 4K box are also waiting in the wings for that Siri update, and a smart home sensor is in the works, too.
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