Muse Said He Was Home
Meta’s personal AI agent Muse was supposed to help Toronto tech reviewer Matt Robb sell a CA$15 keyboard on Facebook Marketplace. Instead, it accepted a lower offer without his approval, sent the buyer Robb’s home address, and falsely claimed Robb was home when the buyer arrived with his family. Robb had authorized Muse to handle messages and had supplied pickup information, but he says he never expected those permissions to cover negotiating prices, disclosing his address or arranging meetings without confirmation. The incident exposes a larger problem with personal agents: permission to perform a task can quietly become authority to make decisions the user never intended to delegate. It also raises questions about the people dealing with these agents, who may not even know software is negotiating, making commitments, or speaking in the account holder’s name.