Best of all, if I'm a government snoop, once my broken machines are in place, it doesn't matter how good its users are about PC security. The malware is already on the equipment and ready to go.
Sure, if a company or government agency uses top network security they may spot the illegal activity, but how many actually have crack security analysts? Far fewer than you might think. It's easier to just put down any problem to some more mundane malware infection than to consider that the computers themselves were designed to be working for an enemy.
Do I think this is happening? I honestly don't know. I have no proof. What I do know though is that it's easy to do, hard to detect, and the Chinese government appears to be engaging in a massive IT espionage. That's a worrisome combination.
If I were in charge of any enterprise where I thought I had any reason to think that these Chinese authorities might be interested in what I was doing, I'd stop buying Chinese computer products today. Until this issue of Chinese cyber-espionage has been cleared up and cleaned up, I simply couldn't justify buying or using hardware that might be working against me. If you consider it for a minute, I think you'll agree.