Password locking refers to the process of protecting data with a string of symbols. By adding password protection, your files cannot be accessed without the corresponding code. However, passwords alone cannot completely protect your data. If a third party bypasses your password protection, they can still view the files and other information behind it. Encryption goes beyond preventing unauthorized access to your files—instead, it makes them totally unreadable by using an encryption algorithm. This means that even if someone bypasses the password of an encrypted file, they will only see a bunch of random digits, letters, and symbols.