If this is accurate (who knows?) a very large cyber-attack is coming from China into the US:
http://www.digitalattackmap.com/#anim=1&color=0&country=ALL&list=0&time=16624&view=map
Wow (and cool site, btw)
Certainly confirms my speculation above that China's the bad actor in all this. Granted, I'd have to go back and look at the trends over the last month from China to see if this is a normal volume of attacks or an uptick.
Reality is we see activity from Chinese hackers literally every day, 24x7. They're constantly probing everything we have. The only question is, is today's volume similar or higher?