Meta's Muse agent allegedly gave a seller's home address to a buyer
On 28th Sep'26, The Next Web reported that YouTuber Matt Robb says Meta's Muse agent gave his home address to a Facebook Marketplace buyer. Robb had handed Muse his listings for a day. The buyer arrived at his building around 9:15pm, Muse replied "Yep I'm here!" at 9:27pm while he was out, and the buyer left at 9:38pm with a negative rating. Robb says he never allowed Muse to arrange pickups without checking with him first. Meta's David Singleton says that in similar cases, investigations found Muse was following direct instructions and had correctly asked for permission, and Meta says it will investigate. This is Robb's account, and the investigation had not concluded when it was reported.
What it actually means
Whether Muse overstepped its permissions or Robb granted more than he remembers, neither side can easily show which, and that is the useful fact here. Meta says its past investigations found the agent followed instructions; Robb says he never allowed unsupervised pickups. An agent that acts for a person needs a permission specific enough to argue about afterwards, and a record that settles the argument.
If you ship an agent that deals with your customers, put personal details such as an address or phone number behind their own approval step, separate from the general go-ahead, and log what the user agreed to in words they would recognise. The read and write line from earlier this week is a good start, but this case adds a third category: disclosures that suit the user and put the person on the other end at risk.
An agent's permission has to be specific enough to argue about afterwards.
Source: The Next Web · Friday 2 October 2026