The idea of hardware-based security is not new. Millions of laptops already contain a chip called a Trusted Platform Module, or TPM, which offers protected storage of encryption keys, passwords and digital certificates. The idea of the TPM is also coming to servers and mobile phones. iIBM has built a prototype of Secure Blue using its own PowerPC processor technology. However, the system will work with any processor design, including those from Intel and Advanced Micro Devices that are used in PCs. IBM has not had discussions with Intel or AMD on including Secure Blue in their processors.
News source: CNet