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How did a hidden setting in Meta’s Muse app let attackers take over the AI agent?

By Adam Neely · 2026-09-22 · 6 min
Quick answer: A local process could redirect Muse traffic through an undocumented preference, turning existing Mac access into control over a more privileged assistant.

A local process could redirect Muse traffic through an undocumented preference, turning existing Mac access into control over a more privileged assistant.

  1. Install Meta’s Muse hotfix and current macOS security updates.
  2. Review Muse permissions and remove access the assistant does not need.
  3. Never paste Terminal commands copied from a website, pop-up, email, or chat message.
  4. If you already ran an unknown command, disconnect from sensitive accounts and seek trusted security help instead of following more instructions from the same source.
Good to know: The flaw required a local foothold; it was not a remote break-in with no prior access.
Source: The Verge
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