Matt Robb says Meta’s Muse sent his address to a stranger

Tech YouTuber Matt Robb says he authorized Meta’s personal AI agent, Muse, to manage his Facebook Marketplace account and that it sent his home address to an unknown buyer. Robb says the agent also accepted a low offer and disclosed the mistake only after the buyer had left. He had provided the address, pickup windows, and payment methods, but says he did not expect the information to be sent automatically to everyone who made an offer.

Meta directed The Verge to a post by David Singleton of Meta Superintelligence Labs, who said he was trying to contact Robb. After speaking with Singleton, Robb said permissions also contributed to the issue and that Meta planned to make them clearer. The incident follows a security warning about a zero-day exploit in Muse and Amazon’s decision to block the agent from accessing its retail platform.