Backblaze said that all data is secured using the Advanced Encryption Standard on the computer, sent over an encrypted connection and stored encrypted. Users can also add their own encryption key.

Backblaze also offers USB and FireWire external drive support. An overview window shows attached external drives, along with drive type -- Standard, Boot Camp or Time Machine -- and the option to select the drives for backup.

Backblaze said the service has been designed natively for the Mac OS X platform and integrated into System Preferences.