At Symantec, we consider your Vault security seriously. Your Vault data is encrypted by the client prior to storing it on the online Vault. Encryption is performed with the AES encryption algorithm, which is the leading industry standard for strong encryption. For example, when a login is saved in Identity Safe website, the username, password, and other details are encrypted. Encryption occurs before this data is ever transmitted to the server. It transforms the readable login data (plaintext) to unreadable format (ciphertext). So, no one can get to know your Vault data. The data can be transformed back to readable format only with the correct encryption key, which only you have. Also, your Vault password is never stored anywhere. All communication between the client and the Symantec server uses SSL, a cryptographic protocol, for encryption and validation.