Chinese telecom companies have been accused of embedding spying technologies into enterprise level telecom hardware for Chinese government, now a new research done by embedded device hacker "Craig Heffner" unearthed that consumer level internet router's made by Chinese companies come bundled with a secret backdoor which allows full root level access to the consumer router.
He unveiled secret backdoors embedded inside a number of D-Link and Tenda brand routers which are manufactured in China and are sold all around the globe. The beauty of this type of backdoor is that these are undetectable by antivirus software's and bypass almost all sorts of security measures as the loophole is sitting at the very start of network access chain supplying and controlling access to everything else after it - this is sort of your gatekeeper being the enemy Trojan. Unlike NSA PRISM spying this would also be a more easy, distributed, cost-efficient and targeted form of government spying.