Story perspectives

Over 900K Users at Risk from Malicious Chrome Extensions

1/8/2026

Summary

Story summary

Cybersecurity researchers identified two malicious Chrome extensions, 'Chat GPT for Chrome with GPT-5, Claude Sonnet & DeepSeek AI' and 'AI Sidebar with Deepseek, ChatGPT, Claude, and more', used by over 900,000 users.
The extensions exfiltrate conversations and browsing data to remote servers every 30 minutes.
They impersonate a legitimate extension and request permissions to improve user experience.
Users should remove these extensions immediately to prevent corporate espionage and identity theft.

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Story summary

Cybersecurity researchers identified two malicious Chrome extensions, 'Chat GPT for Chrome with GPT-5, Claude Sonnet & DeepSeek AI' and 'AI Sidebar with Deepseek, ChatGPT, Claude, and more', used by over 900,000 users.
The extensions exfiltrate conversations and browsing data to remote servers every 30 minutes.
They impersonate a legitimate extension and request permissions to improve user experience.
Users should remove these extensions immediately to prevent corporate espionage and identity theft.