After 10 incorrect password attempts (and ample warnings), the IronKey locks out all further password attempts. It initiates a patent-pending self-destruct sequence that securely and permanently erases your encryption keys and data.
This flash drive unlink many other types of flash media contains a Cryptochip inside thus encrypting and decrypting data on the fly. It also has potted metal casing, waterproof, and tamperroof - all miltary grade design.
As of September 2007 the prices for these neat drives costs:
1GB - $79.00
2GB - $109.00
4GB - $149.00
More information:
https://www.ironkey.com/