Security chip that does encryption in PCs hacked - Yahoo! News
Using off-the-shelf chemicals, Tarnovsky soaked chips in acid to dissolve their hard outer shells. Then he applied rust remover to help take off layers of mesh wiring, to expose the chips' cores. From there, he had to find the right communication channels to tap into using a very small needle.
The needle allowed him to set up a wiretap and eavesdrop on all the programming instructions as they are sent back and forth between the chip and the computer's memory. Those instructions hold the secrets to the computer's encryption, and he didn't find them encrypted because he was physically inside the chip.
Even once he had done all that, he said he still had to crack the "huge problem" of figuring out how to avoid traps programmed into the chip's software as an extra layer of defense.
"This chip is mean, man — it's like a ticking time bomb if you don't do something right," Tarnovsky said
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