In 2015, the United States and China agreed to a digital truce that banned hacking private companies to steal trade secrets. And though the agreement has been touted as a success, it hasn't stopped Chinese state-sponsored hackers from pushing the envelope of acceptable behavior.
Moreover, it certainly hasn't slowed types of hacking that fall outside the purview of the accord. Lately, it seems, that means defense intelligence gathering. In recent weeks, Chinese hackers have reportedly breached a US Navy contractor that works for the Naval Undersea Warfare Center, stealing 614 GB of data about submarine and undersea weapons technology. Attacks in the last few months originating from China have also targeted US satellite and geospatial imaging firms, and an array of telecoms. The incidents highlight the clandestine but incessant hacking campaigns that continue reliably between the US and China.

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