Canadian researchers say the Tibet-focused "GhostNet" has hit nearly 1,300 computers in 103 countries, while a Vietnamese company spots a possible Chinese connection for Conficker.
Security experts say cyberattacks on defense contractors fits the pattern of China-related espionage.
The Conficker worm didn't cause any April 1 conflagration, but it has sparked some thoughts on who over the years would make up a hacking rogues' gallery.
McAfee Labs 2010 Threat Predictions report warns of increased attacks on social networks, as well as Adobe Reader and Google's Chrome OS.
There are battles being waged online between the U.S., China, and Russia.