A computer system power-on security control apparatus is described to provide shielding against unauthorized access to the computer systems. Firmware-level protection is provided instead of the conventional implementation at the operating system level. Repeated power-on and -off cycles inevitable in...http://www.google.es/patents/US6202161?utm_source=gb-gplus-sharePatente US6202161 - Security control for computer power supply subsystem
Security control for computer power supply subsystem
