[1]http://www.extremetech.com/extreme/166580-researchers-find-new-ultra
   -low-level-method-of-hacking-cpus-and-theres-no-way-to-detect-it
   - Gutem

References

   1. http://www.extremetech.com/extreme/166580-researchers-find-new-ultra-low-level-method-of-hacking-cpus-and-theres-no-way-to-detect-it