Meta's Muse AI agent can access data of people who don't use it

Meta's Muse AI assistant has passed 10 million users, with about 25% using it daily. Through connectors to email, calendars and messaging apps, Muse processes data about users' contacts, including people who never opted in, and enables model training by default unless users opt out.

• Muse surpassed 10 million users, 25% use it daily
• The assistant connects to Gmail, Outlook, calendars and messaging apps
• Non-users' data reaches Muse via chats and meeting details
• Model training is on by default unless manually disabled