The trusted computing model is advocated by an alliance of technology heavyweights – Compaq, HP, IBM, Intel and Microsoft, and involves issues such as privacy, digital rights management, and the marginalization of open source software.
The implementation of increasingly complex proprietary encryption programs automatically installed on PCs via software applications and required upgrades has resulted in diminishing user control over computers. See this article,
Who controls your computer? by Richard Stallman, for a well documented review of the legal consequences of this evolving technology.