Whenever I see these news & FBI releases about Chinese state-sponsored hackers breaching systems in America, I wonder whether the same thing happens over there: American malware and hacker groups attacking & laying landmines in China's internet infrastructure, although the Chinese may not publicize these exploits because their system opts to maintain an air of invincibility.
Even just being rational, if we have no qualms spying on our European allies, it seems a safe bet to assume we would be doing that and much more to China too.