Tag: browser
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Claude Mythos finds 271 Firefox flaws, Mozilla believes it shifts security toward defenders
The Mozilla Foundation tested Claude Mythos, an Anthropic AI model that has stirred debate in the cybersecurity community. Before granting access to Mythos, Mozilla scanned … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2026/04/22/claude-mythos-mozilla-vulnerabilities-scanning/
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Mozilla Firefox 150 Released With Fixes for Multiple Code Execution Vulnerabilities
Mozilla has released Firefox 150 to patch 41 security vulnerabilities, including multiple high-severity flaws that could lead to remote code execution. Users should immediately update their browsers to protect against these critical memory corruption and use-after-free bugs. Critical Vulnerability Details The most dangerous flaws include use-after-free vulnerabilities in the DOM (CVE-2026-6746) and WebRTC (CVE-2026-6747) components.…
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Mozilla härtet Webbrowser: Claude Mythos findet 271 Sicherheitslücken in Firefox
Mozilla hat Hunderte Sicherheitslücken in Firefox geschlossen, die mit Anthropics neuer Mythos-KI entdeckt wurden. Leicht war das offenkundig nicht. First seen on golem.de Jump to article: www.golem.de/news/mozilla-haertet-webbrowser-claude-mythos-findet-271-sicherheitsluecken-in-firefox-2604-207852.html
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Firefox 150 – Jubiläum mit besser geteilter Ansicht und neuen Tab-Funktionen
Tags: browserMozilla hat Firefox 150 veröffentlicht und spendiert dem Browser zum Jubiläum eine verbesserte geteilte Ansicht und weitere Neuerungen. First seen on computerbase.de Jump to article: www.computerbase.de/news/apps/firefox-150-jubilaeum-mit-besser-geteilter-ansicht-und-neue-tab-funktionen.97010
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Mythos found 271 Firefox flaws but none a human couldn’t spot
Mozilla CTO says AI means developers finally have a chance to get on top of security First seen on theregister.com Jump to article: www.theregister.com/2026/04/22/mozilla_firefox_mythos_future_defenders/
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Firefox 150 – Jubiläum mit besser geteilter Ansicht und neue Tab-Funktionen
Tags: browserMozilla hat Firefox 150 veröffentlicht und spendiert dem Browser zum Jubiläum eine verbesserte geteilte Ansicht und weitere Neuerungen. First seen on computerbase.de Jump to article: www.computerbase.de/news/apps/firefox-150-jubilaeum-mit-besser-geteilter-ansicht-und-neue-tab-funktionen.97010
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Mozilla: Anthropic’s Mythos found 271 security vulnerabilities in Firefox 150
CTO says new AI model is “every bit as capable” as world’s best security researchers. First seen on arstechnica.com Jump to article: arstechnica.com/ai/2026/04/mozilla-anthropics-mythos-found-271-zero-day-vulnerabilities-in-firefox-150/
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Mozilla: Anthropic’s Mythos found 271 zero-day vulnerabilities in Firefox 150
CTO says new AI model is “every bit as capable” as world’s best security researchers. First seen on arstechnica.com Jump to article: arstechnica.com/ai/2026/04/mozilla-anthropics-mythos-found-271-zero-day-vulnerabilities-in-firefox-150/
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Mozilla Used Anthropic’s Mythos to Find and Fix 271 Bugs in Firefox
The Firefox team doesn’t think emerging AI capabilities will upend cybersecurity long term, but they warn that software developers are likely in for a rocky transition. First seen on wired.com Jump to article: www.wired.com/story/mozilla-used-anthropics-mythos-to-find-271-bugs-in-firefox/
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12 Fraudulent Browser Extensions Disguised as TikTok Downloaders Compromise 130K Users
LayerX security researchers have uncovered a massive, highly coordinated campaign involving at least 12 malicious browser extensions on the Google Chrome and Microsoft Edge marketplaces. Disguised as legitimate TikTok video downloaders, these extensions secretly track user activity and harvest sensitive data. The operation has successfully compromised over 130,000 users, with approximately 12,500 installations still active…
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SideWinder Spoofs Chrome PDF Viewer, Zimbra to Steal Government Webmail Logins
SideWinder is running an active credential”‘harvesting campaign that uses a fake Chrome PDF viewer and a pixel”‘perfect Zimbra clone on Cloudflare Workers to steal government webmail credentials from South Asian targets, including the Bangladesh Navy and Pakistan’s Ministry of Foreign Affairs. The campaign came to light after a Cloudflare Workers URL was spotted harvesting credentials…
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The 5 Best VPN Extensions for Chrome
Looking for the best Chrome VPN extensions in 2026 to enhance your online security and privacy? Dive into our list of top-rated VPNs and find your best fit. The post The 5 Best VPN Extensions for Chrome appeared first on TechRepublic. First seen on techrepublic.com Jump to article: www.techrepublic.com/article/best-chrome-vpn-extensions/
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The 5 Best VPN Extensions for Chrome
Looking for the best Chrome VPN extensions in 2026 to enhance your online security and privacy? Dive into our list of top-rated VPNs and find your best fit. The post The 5 Best VPN Extensions for Chrome appeared first on TechRepublic. First seen on techrepublic.com Jump to article: www.techrepublic.com/article/best-chrome-vpn-extensions/
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Chrome Privacy Concerns Rise as Expert Warns of Fingerprinting Risks
A privacy expert warns Chrome still allows browser fingerprinting and tracking, raising concerns after Google’s shift away from third-party cookie changes. The post Chrome Privacy Concerns Rise as Expert Warns of Fingerprinting Risks appeared first on TechRepublic. First seen on techrepublic.com Jump to article: www.techrepublic.com/article/news-chrome-browser-fingerprinting-privacy-concerns/
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Fake TikTok Downloaders on Chrome and Edge Spying on 130,000 Users
Over 130,000 users are at risk from fake TikTok downloader extensions on Chrome and Microsoft Edge. Researchers discovered these malicious tools use device fingerprinting to spy on users and steal sensitive browser data. First seen on hackread.com Jump to article: hackread.com/fake-tiktok-downloaders-chrome-edge-spy-users/
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AI Model Claude Opus turns bugs into exploits for just $2,283
Claude Opus created a working Chrome exploit for $2,283, showing that widely available AI models can already find and weaponize vulnerabilities. Claude Opus managed to produce a functional Chrome exploit for just $2,283, raising concerns about how easily AI can be used to find and exploit vulnerabilities. Below is the cost of the experiment: Model…
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Researcher Claims Claude Opus Enabled Creation of Working Chrome Exploit
A security researcher has shown that Anthropic’s Claude Opus can help build a working browser exploit chain against Google Chrome’s V8 engine, raising fresh concerns about how quickly AI can speed up offensive security work. The experiment was published by Mohan Pedhapati, also known as s1r1us, CTO of Hacktron, and it arrived just days after…
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Researcher Claims Claude Opus Enabled Creation of Working Chrome Exploit
A security researcher has shown that Anthropic’s Claude Opus can help build a working browser exploit chain against Google Chrome’s V8 engine, raising fresh concerns about how quickly AI can speed up offensive security work. The experiment was published by Mohan Pedhapati, also known as s1r1us, CTO of Hacktron, and it arrived just days after…
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Researcher Claims Claude Opus Enabled Creation of Working Chrome Exploit
A security researcher has shown that Anthropic’s Claude Opus can help build a working browser exploit chain against Google Chrome’s V8 engine, raising fresh concerns about how quickly AI can speed up offensive security work. The experiment was published by Mohan Pedhapati, also known as s1r1us, CTO of Hacktron, and it arrived just days after…
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Für 2.300 US-Dollar: Forscher entlockt Claude gefährlichen Chrome-Exploit
Ein Forscher hat mit Claude Opus in rund 20 Stunden eine funktionierende Exploit-Kette für Chrome entwickelt. Mythos braucht es dafür gar nicht. First seen on golem.de Jump to article: www.golem.de/news/fuer-2-300-us-dollar-forscher-entlockt-claude-gefaehrlichen-chrome-exploit-2604-207706.html
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Claude Opus wrote a Chrome exploit for $2,283
Pause your Mythos panic because mainstream models anyone can use already pick holes in popular software First seen on theregister.com Jump to article: www.theregister.com/2026/04/17/claude_opus_wrote_chrome_exploit/
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Über 100 bösartige Erweiterungen im Chrome Web Store entdeckt
Insgesamt 108 Erweiterungen wurden als Teil einer großangelegten Spionage-Kampagne im Chrome Web Store identifiziert, die es gezielt auf Telegram-Sitzungen und Google-Identitäten abgesehen hat. Trotz der Warnungen sind viele der gefährlichen Tools noch immer für Nutzer zugänglich. First seen on it-daily.net Jump to article: www.it-daily.net/it-sicherheit/cybercrime/chrome-web-store
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108 malicious Chrome extensions caught stealing Google and Telegram data from 20,000 users
Cybersecurity researchers have revealed that 108 malicious Google Chrome extensions have been quietly stealing user credentials, hijacking Telegram sessions, and injecting unwanted ads and scripts into browsers – all reporting back to the same central point. First seen on bitdefender.com Jump to article: www.bitdefender.com/en-us/blog/hotforsecurity/malicious-chrome-extensions-steal-google-telegram-data
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Google Chrome lacks protection against one of the most basic and common ways to track users online
Browser fingerprinting is everywhere First seen on theregister.com Jump to article: www.theregister.com/2026/04/16/google_chrome_lacks_browser_fingerprinting/
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Massive Chrome Extension Scam Exposes 20,000 Users to Data Theft
Researchers linked 108 malicious Chrome extensions to a coordinated campaign that exposed about 20,000 users to data theft, backdoors, and ad injection. The post Massive Chrome Extension Scam Exposes 20,000 Users to Data Theft appeared first on TechRepublic. First seen on techrepublic.com Jump to article: www.techrepublic.com/article/news-malicious-chrome-extensions-data-theft/
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Chrome Privacy Vulnerability Exposes Users via Fingerprinting and Header Leaks
A new technical review of Google Chrome’s privacy posture shows that modern tracking no longer depends only on cookies, because websites can combine browser fingerprinting, storage tricks, and HTTP header leaks to identify users with surprising accuracy. Chrome has reduced some obvious signals, but many high-value surfaces such as canvas rendering, WebGL, audio processing, Client…
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Over 100 Chrome Web Store extensions steal user accounts, data
More than 100 malicious extensions in the official Chrome Web Store are attempting to steal Google OAuth2 Bearer tokens, deploy backdoors, and carry out ad fraud. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/over-100-chrome-extensions-in-web-store-target-users-accounts-and-data/
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Over 100 Chrome extensions in Web Store target users accounts and data
More than 100 malicious extensions in the official Chrome Web Store are attempting to steal Google OAuth2 Bearer tokens, deploy backdoors, and carry out ad fraud. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/over-100-chrome-extensions-in-web-store-target-users-accounts-and-data/
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Malicious Chrome Extensions Campaign Exposes User Data
108 malicious Chrome extensions steal sessions, Google data, inject ads via single C2 infrastructure First seen on infosecurity-magazine.com Jump to article: www.infosecurity-magazine.com/news/chrome-extensions-expose-user-data/
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108 Malicious Chrome Extensions Steal Google and Telegram Data, Affecting 20,000 Users
Cybersecurity researchers have discovered a new campaign in which a cluster of 108 Google Chrome extensions has been found to communicate with the same command-and-control (C2) infrastructure with the goal of collecting user data and enabling browser-level abuse by injecting ads and arbitrary JavaScript code into every web page visited.According to Socket, the extensions are…