Have you ever been on a website when a pop-up suddenly asked for access to your camera, microphone, location, or notifications? Whether you clicked “allow,” dismissed it, or just wondered why it appeared, those permission requests aren’t always harmless. Some sites can abuse those permissions.

With Access Control, a new feature in Browser Guard, you decide exactly which websites can access your device and stop the rest. That means you choose which websites can: 

• Use your camera
• Use your microphone
• Access your location
• Send you notifications 

Further, not only can you control which websites have access to your devices, but you can also block websites or even require those specific sites to request permission every single time they try to gain access to your machines. You can always allow trusted sites to access your camera or location while blocking everything else.  

Access Control is now available for Malwarebytes subscribers using Chrome and Edge browsers on a Windows device. 

How to use Access Control 

We designed Access Control to be both powerful and simple because we know every moment you spend getting set up is another moment you’re left unprotected.  

How to use Access Control:  

• Install/Open Browser Guard: Click the Malwarebytes icon in your browser’s header 
• Access Dashboard: Click the Dashboard tab at the bottom of the extension panel. 
• Navigate to Access Control: On the left sidebar of the web page, select Access Control. 
• Manage Permissions: See visited websites, click “Allow” to enable or disable Malwarebytes’ ability to see visited sites.

This feature is rolling out in beta first, so you might see improvements and updates as we refine it. Currently, the feature works across Chrome and Edge, but will roll out to other browsers soon.  

Access Control is another step toward making privacy simple and accessible.  Not a subscriber yet? Check out  Malwarebytes’ plans today to unlock this feature and more. 

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We don’t just report on threats—we remove them

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

Update March 16, 2026
Earlier this week, Google incorrectly reported that an actively exploited vulnerability in Chrome had been fixed, and has now announced it will roll out a new update to protect users against the vulnerability tracked as CVE-2026-3909.

Original content:

Google has released an out-of-band security update for Chrome desktop that patches two high‑severity zero‑day vulnerabilities.

Both bugs can be exploited remotely and require only that a user visit a malicious website. Because the attack complexity is low, the vulnerabilities pose a higher real-world risk.

How to update Chrome

The latest version numbers are 146.0.7680.75/76 for Windows and macOS and 146.0.7680.75 for Linux. If your Chrome browser is on version 146.0.7680.75 or later, you’re protected from these vulnerabilities.

The easiest way to stay up to date is to allow Chrome to update automatically. However, updates can lag if you rarely close your browser, or if something interferes with the update process.

To update manually:

1. Click the More menu (three dots)
2. Go to Settings > About Chrome.
3. If an update is available, Chrome will start downloading it.
4. Restart Chrome to complete the update, and you’ll be protected against these vulnerabilities.

You can also find step-by-step instructions in our guide to how to update Chrome on every operating system, which includes instructions for checking your version number.

Technical details

Google reports that it discovered and fixed both bugs internally, with patches landing within roughly two days of reporting.

CVE‑2026‑3909 is an out‑of‑bounds write vulnerability in Skia, Chrome’s 2D graphics library used to render web content and UI elements. A remote attacker can lure a user to a malicious webpage that triggers the bug, corrupts memory, and potentially achieves code execution in the browser context. Skia is an open source 2D graphics library used not only in Google Chrome but also in many other products.

CVE‑2026‑3910 is an inappropriate implementation flaw in the V8 JavaScript and WebAssembly engine. A specially crafted HTML page could allow a remote attacker to execute arbitrary code inside the V8 sandbox. V8 is the engine that Google developed for processing JavaScript, and it has seen more than its fair share of bugs.

Chrome’s Skia and V8 components are prime targets because they sit directly on the path between untrusted web content and the underlying system.

It is possible to chain an out‑of‑bounds write in Skia with other bugs to break out of the renderer sandbox, while V8 implementation flaws frequently appear in exploit chains used by targeted threat actors and spyware vendors.

How to stay safe

To protect your device, update Chrome as soon as possible. Here are some more tips to avoid becoming a victim, even before a zero-day is patched:

• Don’t click on unsolicited links in emails, messages, unknown websites, or on social media.
• Enable automatic updates and restart regularly. Many users leave browsers open for days, which delays protection even if the update is downloaded in the background.
• Use an up-to-date, real-time anti-malware solution which includes a web protection component.

Users of other Chromium-based browsers can expect to see a similar update soon.

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We don’t just report on threats—we remove them

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

Last week on Malwarebytes Labs:

• One click on this fake Google Meet update can give attackers control of your PC
• Beware of fake OpenClaw installers, even if Bing points you to GitHub
• Fake CleanMyMac site installs SHub Stealer and backdoors crypto wallets
• Windows File Shredder: When deleting a file isn’t enough
• Supreme Court to decide whether geofence warrants are constitutional
• Does the UK really want to ban VPNs? And can it be done?
• Attackers abuse OAuth’s built-in redirects to launch phishing and malware attacks
• High-severity Qualcomm bug hits Android devices in targeted attacks
• Pentagon ditches Anthropic AI over “security risk” and OpenAI takes over
• Chrome flaw let extensions hijack Gemini’s camera, mic, and file access
• Samsung TVs stop spying on viewers in Texas. Here’s how to disable ACR anywhere
• A fake FileZilla site hosts a malicious download
• Purchase order attachment isn’t a PDF. It’s phishing for your password

Stay safe!

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We don’t just report on threats—we remove them

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

Google has issued a patch for a high‑severity Chrome zero‑day, tracked as CVE‑2026‑2441, a memory bug in how the browser handles certain font features that attackers are already exploiting.

CVE-2026-2441 has the questionable honor of being the first Chrome zero-day of 2026. Google considered it serious enough to issue a separate update of the stable channel for it, rather than wait for the next major release.

How to update Chrome

The latest version number is 145.0.7632.75/76 for Windows and macOS, and 145.0.7632.75 for Linux. So, if your Chrome is on version 145.0.7632.75 or later, it’s protected from these vulnerabilities.

The easiest way to update is to allow Chrome to update automatically. But you can end up lagging behind if you never close your browser or if something goes wrong, such as an extension preventing the update.

To update manually, click the More menu (three dots), then go to Settings > About Chrome. If an update is available, Chrome will start downloading it. Restart Chrome to complete the update, and you’ll be protected against these vulnerabilities.

You can also find step-by-step instructions in our guide to how to update Chrome on every operating system.

Technical details

Google confirms it has seen active exploitation but is not sharing who is being targeted, how often, or detailed indicators yet.

But we can derive some information from what we know.

The vulnerability is a use‑after‑free issue in Chrome’s CSS font feature handling (CSSFontFeatureValuesMap), which is part of how websites display and style text. More specifically: The root cause is an iterator invalidation bug. Chrome would loop over a set of font feature values while also changing that set, leaving the loop pointing at stale data until an attacker managed to turn that into code execution.

Use-after-free (UAF) is a type of software vulnerability where a program attempts to access a memory location after it has been freed. That can lead to crashes or, in some cases, lets an attacker run their own code.

The CVE-record says, “Use after free in CSS in Google Chrome prior to 145.0.7632.75 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.” (Chromium security severity: High)

This means an attacker would be able to create a special website, or other HTML content that would run code inside the Chrome browser’s sandbox.

Chrome’s sandbox is like a secure box around each website tab. Even if something inside the tab goes rogue, it should be confined and not able to tamper with the rest of your system. It limits what website code can touch in terms of files, devices, and other apps, so a browser bug ideally only gives an attacker a foothold in that restricted environment, not full control of the machine.

Running arbitrary code inside the sandbox is still dangerous because the attacker effectively “becomes” that browser tab. They can see and modify anything the tab can access. Even without escaping to the operating system, this is enough to steal accounts, plant backdoors in cloud services, or reroute sensitive traffic.

If chained with a vulnerability that allows a process to escape the sandbox, an attacker can move laterally, install malware, or encrypt files, as with any other full system compromise.

How to stay safe

To protect your device against attacks exploiting this vulnerability, you’re strongly advised to update as soon as possible. Here are some more tips to avoid becoming a victim, even before a zero-day is patched:

• Don’t click on unsolicited links in emails, messages, unknown websites, or on social media.
• Enable automatic updates and restart regularly. Many users leave browsers open for days, which delays protection even if the update is downloaded in the background.
• Use an up-to-date, real-time anti-malware solution which includes a web protection component.

Users of other Chromium-based browsers can expect to see a similar update.

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We don’t just report on threats—we help safeguard your entire digital identity

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

Last week on Malwarebytes Labs:

• How to find and remove credential-stealing Chrome extensions
• Fake shops target Winter Olympics 2026 fans
• Outlook add-in goes rogue and steals 4,000 credentials and payment data
• Child exploitation, grooming, and social media addiction claims put Meta on trial
• Apple patches zero-day flaw that could let attackers take control of devices
• Criminals are using AI website builders to clone major brands
• February 2026 Patch Tuesday includes six actively exploited zero-days
• Malwarebytes earns PCMag Best Tech Brand spot, scores 100% with MRG Effitas
• Discord will limit profiles to teen-appropriate mode until you verify your age
• How safe are kids using social media? We did the groundwork
• Man tricked hundreds of women into handing over Snapchat security codes
• Is your phone listening to you? (re-air) (Lock and Code S07E03)
• AI chat app leak exposes 300 million messages tied to 25 million users
• Fake 7-Zip downloads are turning home PCs into proxy nodes

Stay safe!

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We don’t just report on threats—we help safeguard your entire digital identity

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