Email Encryption is a significant part doing business online. Encryption is completed with two keys. one key is called the public key and the other one is called the private key. If you encrypt something using the public key, it can only be decrypted with the private key.
Although this sounds complex, email programs make it far simpler. Keys which are people are often exchanged automatically once you email someone. That way in the event that you later wish to send them an encrypted message, it's already saved on your computer to be used. As the world changes to more online trade, pgp encrypted is going to eventually become an significant part conducting business. Taking a couple of minutes today to learn how encryption functions can help you be prepared for a substantial change in the manner in which business functions.