Signal's Meredith Whittaker warns AI chatbots are not your friends and calls Copilot a backdoor
Signal President Meredith Whittaker cautioned users against treating AI chatbots like ChatGPT and Claude as trusted companions, calling them pattern-matching systems rather than sentient beings. She criticized Microsoft Copilot's vision of agentic AI as a backdoor to privacy, arguing that systems requiring access to messages, credit cards, and calendars are incompatible with end-to-end encryption.