A new feature from OpenAI invites Mac users to let an AI witness their every digital action — every click, every keystroke, every opened window — in exchange for a more contextually aware assistant. The convenience is real, but so is the exposure: the logs it generates sit unencrypted on the user's machine, readable by anything else running under the same account, and the expanded context window opens a door to prompt injection from malicious web content. Security professionals are framing this not as a technical edge case but as a fundamental question about what we are willing to leave lying