Malware & Threats 100 Chrome Extensions Steal User Data, Create Backdoor Published through five accounts, the extensions appear part of a coordinated campaign based on shared C&C infrastructure. Ionut ArghireApril 15, 2026
Artificial Intelligence Vulnerability Allowed Hijacking Chrome’s Gemini Live AI Assistant Malicious extensions could hijack the Gemini Live in Chrome feature to spy on users and steal their files. Ionut ArghireMarch 2, 2026
Artificial Intelligence Chrome, Edge Extensions Caught Stealing ChatGPT Sessions Marketed as ChatGPT enhancement and productivity tools, the extensions allow the threat actor to access the victim's ChatGPT data. Ionut ArghireJanuary 27, 2026
Malware & Threats Chrome Extensions With 900,000 Downloads Caught Stealing AI Chats Impersonating a legitimate extension from AITOPIA, the two malicious extensions were also exfiltrating users’ browser activity. Ionut ArghireJanuary 7, 2026
Malware & Threats Chrome, Edge Extensions Caught Tracking Users, Creating Backdoors The extensions were seen profiling users, reading cookie data to create unique identifiers, and executing payloads with browser API access. Ionut ArghireDecember 2, 2025
Data Protection New Firefox Extensions Required to Disclose Data Collection Practices All new extensions will be required to declare their data collection practices in their manifest file using a specific key. Ionut ArghireOctober 27, 2025
Identity & Access Passkey Login Bypassed via WebAuthn Process Manipulation Researchers at enterprise browser security firm SquareX showed how an attacker can impersonate a user and bypass passkey security. Eduard KovacsAugust 14, 2025
Artificial Intelligence Browser Extensions Pose Serious Threat to Gen-AI Tools Handling Sensitive Data LayerX has disclosed an AI chatbot hacking method via web browser extensions it has named ‘man-in-the-prompt’. Eduard KovacsJuly 31, 2025