In addition to encryption, PGP also allows for digital signatures. But it's also quite safe, as messages can only be decrypted with privately known keys that are password-protected. This system ensures that it's easy to send encrypted communications because the only thing needed to encrypt a message is a public key and the proper PGP program. It'll help make encryption terminology much easier to understand. Unsure what a public key or a private key is? Check out these basic encryption terms before reading on. It works by encrypting a message using a public key that's tied to a specific user when that user receives the message, they use a private key that's known only to them to decrypt it.

PGP stands for 'Pretty Good Privacy.' PGP is most often used for sending encrypted messages between two people.