TC is controversial because it is technically possible not just to secure the hardware for its owner, but also to secure against its owner. Such controversy has led opponents of trusted computing, such as Richard Stallman, to refer to it instead as treacherous computing, and some academic opponents have begun to place quotation marks around "trusted computing" in scholarly texts.[2][3]

The trusted computing platform need not be used to secure the system against the owner. It is possible to leave to the owner rights of authorization and have no centralized authority. It is also possible to build open source stack of trusted modules, leaving for the security chip only the task to guard against unauthorized modifications. Open source Linux drivers exist [4] to access and use the trusted computing chip. However, uncooperative operating systems can misuse security features to prevent legitimate data exchange.

Source: http://en.wikipedia.org/wiki/Trusted_Computing