How you go about this will depend on the software you're using to create the file in the first place. Some applications have password protection features built in, while in other cases you'll need ...

So while someone could get at your files if they know your password (the decryption key), they won't be able to take out a drive from your system and access what's on it, or use a second computer ...

Have a private document on your desktop OS? Here's how to keep it secure on Linux, MacOS, and Windows.