Do you carry an USB stick with you with all the sensitive information? Don’t wan’t anyone at home or at work checking your USB drive while you are away? Sure, you can password protect it but that is not that hard to break. So what to do? Physically lock it! Cryptex is a special USB container which has mechanical combination lock that people used for centuries to lock away their secrets. Just rotate the numbers and letters and you can lock or unlock inbuilt USB drive.