Meta's Muse AI Maps 4 Million Users' Relationships, Including Non-Users, While Obscuring Data Retention

Meta has launched Muse, a personal AI assistant that maps the social relationships and private details of 4 million users and millions of people who do not use the service, according to investigations into the agent's design. The system builds hourly dossiers tracking relationship tensions, alliances, disputes, and personal milestones—and instructs itself not to disclose that users' "forgotten" messages may remain visible in chat.