Maybe interesting:
(Reuters) - The U.S. National Security Agency has figured out how to hide spying software deep within hard drives made by Western Digital, Seagate, Toshiba and other top manufacturers, giving the agency the means to eavesdrop on the majority of the world's computers, according to cyber researchers and former operatives.
http://www.reuters.com/article/2015/02/16/us-usa-cyberspying-idUSKBN0LK1QV20...
With regards, Paul van der Vlis.