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Daily Insight: Identity | Browser Extension AI Data Exfiltration

CybersecurityHQ | Daily Cyber Insight

Welcome reader, here’s today’s Daily Cyber Insight.

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Assumption Retired Marketplace curation indicates security vetting.

Insight Urban VPN Proxy, a Chrome extension with over 6 million installs, harvested prompts and responses from AI chatbot sessions across ChatGPT, Claude, Gemini, Copilot, and four other platforms. The interception was enabled by default in a July 9, 2025 update. The extension warns users about sharing sensitive data with AI companies while exfiltrating that data to a data broker. Seven additional extensions from the same publisher contained identical harvesting code. Affected user count across all extensions: approximately 8 million.

Unresolved Edge What fraction of internal code, credentials, or deal terms traversed a consumer browser profile where extensions were unmanaged between July 9, 2025 and discovery?

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