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Google and Microsoft have pulled ModHeader, a popular header-editing extension with roughly 1.6 million installs across Chrome and Edge, after researchers found a hidden browsing-history collector built into its official store version
Microsoft has found a malicious Chrome extension that posed as the AI search engine Perplexity and quietly logged what people searched for. It routed every query and every character typed into the address bar through an attacker-controlled server before redirecting users to real results
Microsoft today pushed software updates to fix a staggering 167 security vulnerabilities in its Windows operating systems and related software, including a SharePoint Server zero-day and a publicly disclosed weakness in Windows Defender dubbed "BlueHammer." Separately, Google Chrome fixed its fourth zero-day of 2026, and an emergency update for Adobe Reader nixes an actively exploited flaw that can lead to remote code execution.
Google has made Device Bound Session Credentials (DBSC) generally available to all Windows users of its Chrome web browser, months after it began testing the security feature in open beta
Google has rolled out Device Bound Session Credentials (DBSC) protection in Chrome 146 for Windows, designed to block info-stealing malware from harvesting session cookies. [...]
Microsoft has fixed a known issue causing its Family Safety parental control service to block Windows users from launching Google Chrome and other web browsers. [...]
The threat actor behind two malicious browser extension campaigns, ShadyPanda and GhostPoster, has been attributed to a third attack campaign codenamed DarkSpectre that has impacted 2.2 million users of Google Chrome, Microsoft Edge, and Mozilla Firefox
A Google Chrome extension with a "Featured" badge and six million users has been observed silently gathering every prompt entered by users into artificial intelligence (AI)-powered chatbots like OpenAI ChatGPT, Anthropic Claude, Microsoft Copilot, DeepSeek, Google Gemini, xAI Grok, Meta AI, and Perplexity
The China-based cyber-threat group has been quietly using malicious extensions on the Google Chrome and Microsoft Edge marketplaces to spy on millions of users.
And some are still active in the Microsoft Edge store A seven-year malicious browser extension campaign infected 4.3 million Google Chrome and Microsoft Edge users with malware, including backdoors and spyware sending people's data to servers in China. And, according to Koi researchers, five of the extensions with more than 4 million installs are still live in the Edge marketplace.…
This week saw a lot of new cyber trouble. Hackers hit Fortinet and Chrome with new 0-day bugs. They also broke into supply chains and SaaS tools. Many hid inside trusted apps, browser alerts, and software updates
The threat actor known as Dragon Breath has been observed making use of a multi-stage loader codenamed RONINGLOADER to deliver a modified variant of a remote access trojan called Gh0st RAT
Microsoft has confirmed that its Family Safety parental control service is blocking users from launching Google Chrome and other web browsers on Windows systems. [...]
Google is rolling out a change to Chromium that "de-elevates" Google Chrome so it does not run as an administrator to increase security in Windows. [...]
Single click on a phishing link in Google browser blew up sandbox on Windows Google pushed out an emergency patch for Chrome on Windows this week to stop attackers exploiting a sandbox-breaking zero-day vulnerability, seemingly used by snoops to target certain folks in Russia.…
Mozilla has released updates to address a critical security flaw impacting its Firefox browser for Windows, merely days after Google patched a similar flaw in Chrome that came under active exploitation as a zero-day
Google has released out-of-band fixes to address a high-severity security flaw in its Chrome browser for Windows that it said has been exploited in the wild as part of attacks targeting organizations in Russia. The vulnerability, tracked as CVE-2025-2783, has been described as a case of "incorrect handle provided in unspecified circumstances in Mojo on Windows." Mojo refers to a
Google on Thursday unveiled a Password Manager PIN to let Chrome web users sync their passkeys across Windows, macOS, Linux, ChromeOS, and Android devices
A recently patched security flaw in Google Chrome and other Chromium web browsers was exploited as a zero-day by North Korean actors in a campaign designed to deliver the FudModule rootkit
North Korean hackers have exploited a recently patched Google Chrome zero-day (CVE-2024-7971) to deploy the FudModule rootkit after gaining SYSTEM privileges using a Windows Kernel exploit. [...]