What is 128-bit encryption?

128-bit encryption refers to the size of the "key" used to encrypt a message. A longer key means the encryption is more "random," and someone attempting to decipher the message will need to try more combinations of keys to access it. Each extra bit in a key doubles the complexity of the key.

Encryption takes plain text and creates an algorithmic scheme that encodes to a non-readable form, in order to protect your privacy.