
You don’t need any third-party software for this, as it’s possible to use the default Mac Disk Utility tool to create a password-protected folder.


The easiest solution to create a protected folder with macOS is to create an encrypted disk image.

You can easily install an additional level of protection. Did you know that users can protect their files and documents with a password, which would be required when logging in the system? But if you share your Mac with other users and store important files on it, that method might not be sufficient.
