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

USB drives, external HDDs, and memory cards—remains the go-to for transferring and backing up data. But these devices are also among the easies ...

Open the document in question and head to File > Protect Document > Encrypt with Password. Pick a password for the file and make sure you remember it—if you forget, that file will be lost forever.

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 ...

I'm looking to encrypt a file with OpenSSL functions (blowfish, des, rc4-- haven't picked one yet). Anyhow, after decrypting a file, I need to know if the file was correctly decrypted. The only ...