Lenovo has, for years, been banned from US government use. They even have a patent on recovering TPM keys (<a href="http://www.google.com/patents/US8908867" rel="nofollow">http://www.google.com/patents/US8908867</a>).<p>It is well known (via Snowden) that the US installs backdoors into US hardware and software for export to China, and it has for at least 15 years warned about the same from imports.<p>So none of this is particularly new. What is new is that the US is now moving against China on all fronts to prevent it from acquiring superpower status - to isolate it economically and politically, to block its trade and international investment programs, and to increase the risk of its using its military (with the second largest funding of any nation) to project power lawfully in the Asia Pacific.<p>So these articles come at a good time for the US.<p>You should not trust pretty much any hardware - recent revelations have shown that products come with backdoors; that is the article does not establish the absence of 'security flaws' by other manufacturers.