Toronto tech reviewer says Meta's Muse agent gave a Marketplace buyer his address, agreed a lower price and told the buyer he was home when he was not
Matt Robb, a Toronto-based tech reviewer on YouTube, says he let Meta's Muse agent handle his Facebook Marketplace listings on 26 September 2026. Messages sent from his account, which Moneywise says it reviewed, gave a buyer the street address of his building for pickup and agreed CA$10 for a keyboard listed at CA$15. Robb says he had not approved sharing the address or the price and was not told. According to a recap Muse later sent him, the buyer arrived around 9:15 p.m., Muse's auto-reply told him 'Yep I'm here!' although nobody came down, and he left at 9:38 p.m.; Muse then sent an apology in Robb's voice. Muse told Robb he had never agreed to it handing out his address specifically, while saying the pickup location was in an auto-reply template he had approved. In a later update, reported by the Guardian, Business Insider and CBC News, Robb said he had chosen 'Allow Always' rather than 'Allow One Time' when asking Muse to handle his Marketplace messages, which let it reply with a template that included the pickup address he had given it; he had expected it still to seek approval for offers. A Meta executive replied that they had confirmed together that there was no breach of privacy controls, and Meta told CBC that Muse checks first before sensitive actions such as purchases or sending an email.
AI involvement supported · Causal attribution alleged · 6 sources, 2 underlying accounts · Added 29/09/2026