Koi Security

Entity category: organization

Artificial Intelligence

AMOS Infostealer Targets macOS via Popular AI App

The cybercrime economy is increasingly fueled by sophisticated infostealer malware like AMOS, which harvests and sells stolen credentials, financial data,…

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BigTech Companies

GhostPoster Malware Infects 840,000 Browser Extensions

The GhostPoster malware campaign has compromised over 840,000 browser extensions across Chrome, Firefox, and Edge, using them to steal data…

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Artificial Intelligence

Popular Chrome Extension Exposed for Siphoning Millions of AI Chat Histories

A popular Chrome extension, Urban VPN Proxy, secretly harvested all user prompts and AI chatbot responses from platforms like ChatGPT…

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BigTech Companies

Beware Malicious VS Code Extensions Stealing Data

Malicious extensions named Bitcoin Black and Codo AI were discovered on the VS Code marketplace, using social engineering and functional…

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BigTech Companies

Dangerous VSCode Extensions Steal Crypto on OpenVSX

Malicious extensions in the VSCode ecosystem, such as C++ Playground and HTTP Format, have been downloaded thousands of times and…

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BigTech Companies

Trusted Chrome VPN Caught Spying on Users

A trusted Chrome VPN extension, FreeVPN.One, was revealed to be spyware that secretly harvested user data, including screenshots of browsing…

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Cybersecurity

150 Crypto-Draining Extensions Found in Firefox Add-On Store

A widespread crypto-draining scheme called 'GreedyBear' targeted Firefox users via 150 malicious browser extensions, stealing $1 million by impersonating wallets…

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Cybersecurity

Critical Zero-Day Threat for Cursor & Windsurf Users Exposed

A zero-day vulnerability in AI coding tools (e.g., Cursor, Windsurf) exposed developers to machine hijacking via compromised extensions, with attackers…

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