Method and device for securing computers

Details Method and device for securing computers Method and device for securing computers

G - Physics

06

F

G06F 12/14 (2006.01) G06F 21/00 (2006.01)

Patent

CA 2187855

A device for securing computers is in the form of an internally installed computer card. The computer card plugs into an ISA bus slot in a PC. The computer card includes a computer interface and microcontroller. The microcontroller has inputs for motion, power and tamper sensors and communicates with an on-board basic input/output system (BIOS) EEPROM for storing a BIOS security program and a serial EEPROM for storing security parameters and access passwords. The computer card includes a power circuit with NiCd batteries and a recharger for operating the device while the computer is off. The computer card is given a unique physical device address prior to installation. When the computer is powered up, the computer card is addressed by the computer during its BIOS start-up routine. The internal BIOS security program is then initialized, requiring a password before start-up continues. A password hierarchy provides for multiple levels of access to the security capabilities.

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