According to the BBC
, UK officials are in talks with Microsoft about creating back doors into Windows Vista.
Microsoft is currently using BitLocker Drive Encryption through a chip called TPM (Trusted Platform Module) on upcoming computers motherboards. The main aim of the chip is to ensure people are not pirating media. Hard disks in Windows Vista will be effectively encrypted using an unknown key.
The UK government is concerned that this unknown key will prevent any digging out of encrypted data from criminals machines.
Because of this the home office is currently talking to Microsoft about ways of creating back door keys for agencies to be able to view data from machines.
Microsoft has not confirmed whether or not this is likely to happen or not.