It was bound to happen: whenever someone makes a better mousetrap, better mice evolve to outsmart it. And whenever someone creates an encryption method, someone else starts working on ways to crack it. Now there is a commercial tool out there that can be used to defeat BitLocker drive encryption. It’s ostensibly made to aid the “good guys” – law enforcement officials who need to decrypt the contents of lawfully seized computers. However, Passware – the software company that makes the decryption tool – doesn’t limit sales to authorized government agencies. Anybody who has an extra $800 lying around can buy it. That doesn’t bode well for those who are looking to protect their sensitive data. The good news is that, in order to use this method, a hacker would have to have physical access to the computer.
You can read more here:
http://arstechnica.com/microsoft/news/2009/12/first-commercial-tool-cracks-bitlocker.ars