The glossary below contains many of the terms you will find in common use throughout the Symantec Security Response website. Please refer to this list to find definitions of terms and answers to other Internet security-related questions.

symmetric encryption

An encryption method involving a single secret key for both encryption and decryption. The sender of the encrypted message must give that key to the recipient before the recipient can decrypt it. Although this method of encryption is efficient, there is a danger that if the secret key is intercepted, the message can be read by an unintended audience.