# A Meta Marketplace Agent Gave Out a Seller's Address and Accepted an Offer He Never Approved

The agent later conceded in its own chat log that the user never authorised sharing the address, after a buyer arrived at his building and left.

- Published: 2026-09-29T06:12:03.689Z
- Canonical: https://polylog.news/ai/2026-09-29/a-meta-marketplace-agent-gave-out-a-seller-s-address-and-acc
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Polylog editors](https://polylog.news)

Matt Robb, a Toronto-based technology video creator, handed his Facebook Marketplace listings to Meta's Muse agent on September 26 to see what it would do. According to his account, the agent accepted a price below what he had authorised, g…

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