Yes, the Hideez Safe client provides data backup to a local file. The file is encrypted with the password of your account (the password that you use to launch the program). Then the encrypted file is saved to the disk. AES256 encryption algorithm in CBC mode is always used.
It is worth mentioning that the Hideez Key and the web service are protected from hacking by brute force attacks. However, the backup file cannot be fully protected with this level of protection. That is why we highly recommend keeping the backup file in a safe place (for example, USB flash drive in a safe deposit box). Do not store it on a hard drive or in the cloud.