Warning: The following link from the Acronis web site states that both ATI 11 Home and ATI 9.1 Workstation include "Password-based encryption (AES)". However, this is NOT the case. ATI technical support just confirmed this and I confirmed it by backing up a single file both with and without password protection. The resulting files had identical contents. Definitely no encryption offered with this product. http://www.acronis.com/homecomputing/products/trueimage/comparison.html It's even worse as the product caches passwords used to open volumes and has no easy way to clear the password. Key the correct password once and you are never prompted again. When I asked ATI support how to wipe clear the cache they simply ignored the question. The cleanup feature will take care of this but it's rather a pain to go through all that just to clear a PW. There are many products that will perform backups well and ATI might be one of them. However, I backup to an external USB drive and want to be certain that if the drive is lost or stolen nobody can recover the data without the correct password. ATI does not offer this kind of security. Still waiting to see if the ATI 30 day money back guarantee is real or if that is also just false marketing hype.