PINoptic Secure Storage uses the patented security access control called a One Time Visual Probablistic password (OTP) combined with industrial and military grade encryption to keep your private content private to you or those you choose to share your PINoptic Passcode with. Different types of storage can be protected by using the PINoptic Secured Storage Product including USB Memory Stick, Partial or Entire Hard Disks and even ISO/Images and CD content.