Q. Is the SMS database encrypted?
A. No, the SMS database by itself is not encrypted, SMS security relies on password protection and device accessibility. You can however encrypt the contents of any SMS database backup you create. If you want to encrypt the contents of the backed up data, check the appropriate box in the SMS backup wizard and enter an encryption password.
CAUTION: Be sure to note and remember the password as the password is not recoverable. In addition, you cannot restore the contents of an encrypted backup without this password.