Files has no per-folder password
The Files app organises documents across local storage and connected providers, but it does not offer a folder-level password. There is no built-in equivalent to a locked directory.
The workable options therefore change the container rather than the folder: put the files somewhere that has its own protection.
The realistic options
- A locked note, for a small number of attachments.
- A password-protected archive, for deliberate transfer of a defined set of files.
- Locking the containing app where the iOS version supports it, which gates the interface.
- Importing into an encrypted vault, which gives separate storage under an independent credential.
The container determines the boundary
Locking an app restricts its interface. Encrypting an archive or importing into a vault protects the stored contents. These are different guarantees and they fail differently.
If the file remains readable to another app, a connected cloud provider, or a backup, then whatever gate you placed on one interface is not the boundary you thought it was.
Whichever you choose
- Identify where the source file remains after copying or importing.
- Test preview, export, backup, and recovery with a sample file first.
- Choose a secret unrelated to the device passcode where separation matters.
- Check Files, Downloads, and any connected cloud provider for leftover copies.
Two non-protections
- Relying on a filename or folder name change.
- Forgetting copies held by Files, Downloads, or a cloud provider.
A fictional example
Sofia starts with a non-sensitive test: “Identify where the source file remains after copying or importing.” Next, Sofia follows the second check: “Test preview, export, backup, and recovery with a sample.” This fictional scenario demonstrates the decision process; it is not a report of product testing.
Common mistakes
- Relying on filename changes
- Forgetting Files, Downloads, and cloud-provider copies
What this workflow does not change
- Relying on filename changes
- Forgetting Files, Downloads, and cloud-provider copies
Questions people ask
Can I lock one Files folder?
Not with a native per-folder password in the ordinary Files interface.