DigiShield is a powerful encryption tool for removable digital media. Why is encryption necessary? Although most flash drives or removable media often carry important information, it is not normally protected adequately. If someone were to access it, or if the media device was lost or stolen, that information could be easily accessed. If you encrypt such information, even if it is accessed by someone, it is meaningless to them because it is unable to be read. With DigiShield you encrypt your important data using one of three types of strong encryption algorithms: Rijndael (AES)*, Twofish (AES finalist), or Blowfish (448 bit).