Kingston DataTraveler BlackBox (DTBB), DataTraveler Secure Privacy Edition (DTSP), and DataTraveler Elite Privacy Edition (DTEP) USB flash drives use a fixed 256-bit key for obtaining access to the cleartext drive contents, which makes it easier for physically proximate attackers to read or modify data by determining and providing this key.
https://www.ironkey.com/usb-flash-drive-flaw-exposed
http://www.vupen.com/english/advisories/2010/0080
http://www.syss.de/index.php?id=108&tx_ttnews%5Btt_news%5D=528&cHash=8d16fa63d9
http://www.kingston.com/driveupdate/
http://news.zdnet.co.uk/security/0%2C1000000189%2C39963327%2C00.htm