TRUSTED PLATFORM MODULE (TPM) CHIP Description: The TPM method uses a chip embedded on a computer’s hard drive to store passwords, digital certificates, and encryption keys. The chip verifies the integrity of the connected device at boot-up, and theerification results in a chain of trust betweenmachines.
Advantages/disadvantages: The concept holds promise, but TPM chips have problems recognizing unlicensed software unrelated to the computer’s operating system, and they could be costly to upgrade.
Merchants: IBM Corp., Armonk, N.Y., already installs some form of the chip in many machines.
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