When it comes to security, the Corsair Flash Padlock 2 gets high marks for its ability to protect any sensitive data that is stored on the drive. Setting up these security features was extremely simple and once you have keyed in a unique four to ten digit PIN, the drive will automatically lock when removed from a USB port. In this locked state, the flash drive uses a 256-bit AES hardware encryption and built-in hacker protection that will temporarily lock the drive for a few minutes after five unsuccessful log-in attempts.