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Re:Security chip that does encryption in PCs hacked by varaon on Tuesday February 09, 2010 @01:34PM (#1112847)
>"This chip is mean, man — it's like a ticking time bomb if you don't do something right," Tarnovsky said.

I'd be interested in hearing more about this.

Re:Security chip that does encryption in PCs hacked by sp332 on Tuesday February 09, 2010 @05:36PM (#1113574)
It's not the same chip, but you can read about some of the more common high-end countermeasures on this page: http://www.cl.cam.ac.uk/~rnc1/descrack/ibm4758.html