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Urban VPN Extension Harvests AI Chat Data from Millions of Users

First seen 16 Dec 2025, 15:57 UTC

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ThreatCluster March 12, 2026 at 13:27 UTC

Urban VPN Proxy, a popular free browser extension, has been found to collect and export full AI chat conversations from users. The extension injects hidden scripts into AI chat services, capturing prompts, responses, and metadata, which are sent to Urban VPN’s servers regardless of the VPN's status. This breach affects users who utilize AI tools for sensitive information, posing risks to organizational data security.

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