According to the Taipei Times, Taiwan's National Security Bureau (NSB) estimates that the PLA’s cyberarmy now numbers more than 100,000, has a budget of more than US$2.71 million and targets telecoms and think tanks. It also believes that the Chinese military has shifted the emphasis of cyberattacks on Taiwan from government institutions to civilian think tanks, telecommunications service providers, Internet node facilities and traffic signal control systems.
This doesn't seem to agree with US evaluations. PRC has long engaged in espionage with the other APT: humans. It's only recently, it seems, that attention has been directed to government, critical infrastructur, and military targets.