Encryption is the act of protecting information using cryptography. This means that any time something is protected with a password, this information is encrypted. When you unlock your computer with a password you are decrypting the information on your computer. This type of encryption using a simple password is known as “symmetric encryption”. Symmetric encryption works great until more than one person requires access to the encrypted information. If multiple people require access to the information, then the password must be shared. The act of sharing a password makes the information vulnerable because if the password accidentally gets into the hands of the wrong person, they will have access to the protected information.