Meta's Muse Builds Detailed Files on Everyone in Your Life

Researchers examining Meta's AI agent Muse found system instructions that tell it to create and update a page for every person in the user's life on an hourly basis, including names, relationship types, shared topics, birthdays and relationship history. Meta says the data is stored in each user's isolated virtual machine.

• Muse creates and updates a page for every person in the user's life hourly
• Files include names, relationship types, shared topics, dates and history
• Researcher Karan Joshi extracted the prompts via the regular chat interface
• Meta says data stays in each user's isolated VM, inaccessible to other agents