Encrypting files

Learn how to encrypt files to keep your information protected.

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Lesson overview

Encryption is a great tool to protect your information, once a file has been encrypted it’s almost impossible for anyone to be able to know the contents of the file. The file is protected with a key (usually a password). The only way to read the file would be to decrypt the file by typing in the password.

  • First, you will find a secret message our friend Sam has sent you.

  • Once you find his encrypted file, the only way to read it is to decrypt it

  • After you've read his message, it is time to send him an encrypted message back and delete all decrypted files

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