The Bat! offers a variety of data protection measures to its users, including: 1. Encryption: The Bat! provides a range of encryption options, including S/MIME, OpenPGP, and TLS/SSL. 2. Password Protection: All emails sent with The Bat! are protected with a password to ensure that only the intended recipient can access the message. 3. Data Backup: The Bat! provides automatic backup of emails and other data to ensure that no data is lost in the event of a system crash or other failure. 4. Spam Filtering: The Bat! provides an advanced spam filter to help protect users from unwanted emails. 5. Anti-Virus Protection: The Bat! includes an anti-virus scanner to help protect users from malicious software and other threats.