Mirosoft says businesses and individuals will get a safe and easy way to encrypt their data with Windows Vista's Bitlocker.
He said: "The technology itself is 100 per cent secure - we will not be producing any backdoors. There are no backdoors in Bitlocker technology."
Bitlocker encryption uses a Trusted Platform Module, a chip that sits on the motherboard and contains an encryption key. According to Microsoft technical security advisor Steve Lamb, the key both encrypts and decrypts data on the hard disk using the Advanced Encryption Standard, which is also used by the US government.
There are no backdoors in the system but Microsoft says it will still be possible for governments to break the encryption algorithm by throwing enough horsepower (a supercomputer) at it. More info over here.