Security tokens are used to prove one’s identity electronically (as in the case of a customer trying to access their bank account). The token is used in usb lock addition to or in place of a password to prove that the customer is who they claim to be. The token acts like an electronic key to access something.
Security Key and Chrome incorporate the open Universal 2nd Factor (U2F) protocol from the FIDO Alliance, so other websites with account login systems can get FIDO U2F working in Chrome today. It’s our usb access control hope that other browsers will add FIDO U2F support, too. As more sites and browsers come onboard, security-sensitive users can carry a single Security Key that works everywhere FIDO U2F is supported.
Considering the competition in drive locking/encrypting, usb lock has a very steep price of USD 29.95. There are many free alternatives, such as the powerful TrueCrypt , which offers AES, TwoFish and Serpent encryption algorithms (and their combinations like AES-TwoFish, TwoFish-Serpent etc.) USB Secure is well behind the price/performance comparison in the USB security arena. In addition, USB Secure, for its price is used only for external disks, where TrueCrypt can be used for any type of disks.