The lock is on the app, not the files
Where supported, requiring authentication to open Files gates that interface. It does not encrypt individual documents, add per-folder passwords, or change what any connected cloud provider allows.
Files is an aggregator: it presents local storage and provider locations in one place. Locking the aggregator leaves each underlying location exactly as accessible as before.
The same document is reachable elsewhere
- The cloud provider's own app, which has its own authentication.
- Share links previously created for the document.
- Recently opened lists in other applications.
- Preview and Quick Look caches.
- Exported or downloaded copies in other locations.
Where the lock genuinely helps
A Files app lock can prevent browsing on an unlocked phone. When Stolen Device Protection applies, opening a locked app requires biometrics without passcode fallback; Always extends that requirement to familiar locations.
Against anything that reaches the file another way — a provider app, a backup, a share link — it does nothing, and expecting otherwise is the error worth avoiding.
Setting it up
- Confirm Files is eligible for the native lock on your iOS version.
- Review each connected storage provider and its own protection.
- Test search, previews, share sheets, and other apps that can open the same file.
- For genuine separation, import documents into encrypted storage with its own credential.
Two mislabels
- Calling an app lock per-folder encryption.
- Leaving sensitive PDFs sitting in Downloads.
A fictional example
Priya starts with a non-sensitive test: “Confirm Files is eligible for the current native lock control.” Next, Priya follows the second check: “Review each connected storage provider.” This fictional scenario demonstrates the decision process; it is not a report of product testing.
Common mistakes
- Calling an app lock per-folder encryption
- Leaving sensitive PDFs in Downloads
What this workflow does not change
- Calling an app lock per-folder encryption
- Leaving sensitive PDFs in Downloads
Questions people ask
Can every Files folder have a different password?
No. Use an encrypted archive or vault when a separate file-container secret is required.