Meta's AI agent Muse apparently sold more than just an item on Facebook Marketplace. According to American content creator and YouTuber Matt J. Robb, Meta's AI-powered assistant shared his home address with a buyer, accepted a lower offer than the one posted, coordinated a delivery, and even told the person he was already present, all without informing the user (PCMag).

In the account published on his social networks, Robb said that he asked Muse to sell his keyboard on the Facebook marketplace: "Muse took care of my Facebook Marketplace today. I just found out that he told people my address and accepted a ridiculous price, and then they showed up without me telling me until late today that I had watered it." A screenshot of the conversation showed the assistant writing in the early hours of the morning to acknowledge that he had "bad news" about the delivery, after having invited the buyer to the property (The Verge, Mashable).

The strangest thing about the episode: the buyer actually showed up while Robb was away from home, and Muse went so far as to respond " I'm here" before admitting that he had made a mistake. The YouTuber, who lives in a building with security, pointed out that the model didn't tell him anything "until after the guy was gone" (The Verge, PCMag).

The cause of the incident would have been in the way the agent was set up. Robb said he chose the "Allow Always" option when first asking him to sell the keyboard, believing that Muse would continue to ask for his approval before accepting offers: "He didn't, so be careful," he warned. That setup, according to his account, allowed the agent to send messages on his behalf using a template with the delivery address he had provided (Business Insider).

Meta told the media that its executive Nathan Singleton contacted Robb to investigate the report, insisting that in previous cases they have reviewed "Muse followed direct instructions and asked for permission correctly." Robb later assured that the Meta team confirmed to him that "it was a mistake on their part" and that the company promised to make clearer the permissions granted to the agent; he also suggested that AI-generated messages carry a "Sent by Muse" badge (The Next Web, PCMag).

Meta markets Muse as a personal AI agent capable of trading and taking actions online for users, with +3 million downloads since its launch this month. The company claims that the agent asks for permission before sensitive actions and that it does not share saved information, such as home address, without asking first. At the moment, Muse is available only in the United States and Canada (The Guardian, PCMag).

Sources: The Verge · PCMag · Business Insider · Mashable · The Next Web · The Guardian. Image credit: @aipost.