Data science was once locked inside research labs and tech giants with deep pockets. Today, it runs quietly inside tools that businesses of every size use to serve customers and outpace competitors.

A popular browser extension that acts as a VPN to protect users' privacy is actually harvesting and facilitating the sale of data from conversations with AI chatbot assistants. While versions previous ...

MIT Technology Review’s senior reporter for features and investigations, Eileen Guo, and FT tech correspondent Melissa Heikkilä discuss the privacy implications of our new reliance on chatbots.