Apple just told Mac users: if an AI agent wants the keys to your whole disk, you need to mean it. The company announced tighter macOS Full Disk Access (FDA) controls so users who grant this extraordinary permission do so only with very explicit action, TechCrunch and Ars Technica reported Oct. 2, 2026.
FDA was built for backups. AI agents raised new risks. Apple said some developers use FDA in ways that expose files, mail, messages, and browsing history without full user understanding — and can compromise the privacy of people you message. A TechCrunch correction clarified the change is about informed consent, not a hard new “limit.”
The timing: days after Inc.’s Jason Aten said Meta’s Muse Mac app referenced private Messages content he said he never permitted; Meta disputed that account. Meta CTO David Singleton said Messages integration is opt-in, and Muse only reads Messages if macOS FDA is granted and the Muse Messages connector is enabled. Apple’s developer blog did not name Meta or Muse.
Context still hanging over the beat: a Wired/ChatGPT Mac flaw, a Wardle report on a Muse control issue, and Amazon blocking Muse. Bottom line for users — be careful what you hand agent apps.
Sources: TechCrunch — Sarah Perez, Oct. 2, 2026; Ars Technica — Dan Goodin, Oct. 2, 2026
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