The New York Times on China’s hacker underground:
Three weeks ago, Google blamed hackers that it connected to China for a series of sophisticated attacks that led to the theft of the company’s valuable source code. Google also said hackers had infiltrated the private Gmail accounts of human rights activists, suggesting the effort might have been more than just mischief.
A sophisticated zero-day exploit simultaneously targeting dozens of major tech firms? Yes, now that you mention it, I suppose it is possible this wasn’t just some kids fooling around in the basement.