To keep private files secure on your Mac, utilize hidden files and folders. While macOS allows basic hiding techniques, such as adding a period to file names or using Terminal commands to hide items, a third-party tool can further enhance this by locking them with a password. To view hidden files, users can press Shift+Cmd+. in Finder. Renaming files with a leading period makes them hidden, and un-hiding them requires removing the period and restarting Finder. Mastering these techniques is vital for maintaining privacy on shared devices.
To hide any other folder or file, you can simply add a period to the start of its name.
Press Shift+Cmd+. (period) in Finder. Any hidden folder and file names will show up as faded but visible.
You can also hide and unhide files and folders through the Terminal interface if you don't want to rename them with periods.
You can lock away hidden files behind a password using a third-party program.
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