Browser extensions with 8 million users collect extended AI conversations

Browser extensions with more than 8 million installs are harvesting complete and extended conversations from users’ AI conversations and selling them for marketing purposes, according to data collected from the Google and Microsoft pages hosting them.

Security firm Koi discovered the eight extensions, which as of late Tuesday night remained available in both Google’s and Microsoft’s extension stores. Seven of them carry “Featured” badges, which are endorsements meant to signal that the companies have determined the extensions meet their quality standards. The free extensions provide functions such as VPN routing to safeguard online privacy and ad blocking for ad-free browsing. All provide assurances that user data remains anonymous and isn’t shared for purposes other than their described use.

A gold mine for marketers and data brokers

An examination of the extensions’ underlying code tells a much more complicated story. Each contains eight of what Koi calls “executor ...