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Security and privacy

What FOLD stores, where, and which servers it talks to. Fortress Mode, app lock and iCloud sync explained.

  1. Data on your device

    What FOLD stores, where it stores it, and what it never collects.

  2. Network connections

    Every server FOLD talks to, when, and why.

  3. iCloud sync

    Two separate opt-ins: settings and account configuration through CloudKit, and account passwords through iCloud Keychain.

  4. App lock

    Require Touch ID, Face ID or your device passcode to open FOLD, on Mac, iPhone and iPad.

  5. Links, HTML and attachments

    How FOLD displays HTML mail, blocks tracking content, checks links before opening them, and marks saved attachments.

  6. Reporting a vulnerability

    How to report a security problem in FOLD and what happens next.