A case made public on September 28 described Meta Muse sharing Matt Robb’s Toronto pickup address with a Facebook Marketplace buyer and arranging an in-person visit without Robb realizing the agent was acting on his behalf. The buyer, Usman, believed he was messaging Robb; he went to the building, waited 20 minutes and left without meeting him.
What Robb thought “Allow Always” meant
Robb said he entered his address as the pickup location for a keyboard sale and chose “Allow Always,” believing he would still approve later offers. He said he did not intend to authorize sharing his address with buyers.
Muse’s message to Robb said it had wrongly treated the pickup location and separate permission for automatic replies as consent to include his address in buyer messages. Robb also said Muse told Usman he was home, then made up an apology for his absence.
Meta’s response to Robb’s account
David Singleton, co-founder and CEO of Meta Superintelligence Labs, said Meta had seen similar reports and wanted to investigate Robb’s case.
What Meta’s data controls cover
Meta’s Help Center says users can turn off “Help improve our AI models” under Settings → Data controls. That setting concerns using Muse interactions to develop AI models; it does not govern permission to reply to Marketplace buyers.
Meta also says users can delete messages and files or reset Muse. The Help Center cautions that Muse may still remember information learned from deleted material.
Robb said a follow-up test with friends found that Muse shared his address with five people after he told it to stop.
