You may have missed this article about putting backdoors into computer chips by changing the amount of doping of the silicon: http://people.umass.edu/gbecker/B

You may have missed this article about putting backdoors into computer chips by changing the amount of doping of the silicon: http://people.umass.edu/gbecker/BeckerChes13.pdf http://people.umass.edu/gbecker/BeckerChes13.pdf Ars summary: http://arstechnica.com/security/2013/09/researchers-can-slip-an-undetectable-trojan-into-intels-ivy-bridge-cpus/ http://arstechnica.com/security/2013/09/researchers-can-slip...