As Chinese hackers continue their raid of American companies, the threat reaches new levels of urgency, not so much for the sophistication of these hackers, but because of the sheer volume of attacks. And yet, victims continue to keep their breaches under wraps, and the government is hamstrung in what they can say because most everything they know about Chinese cyberespionage is classified.

Then, the Times’ outing of its own breach, and its Shanghai assailants, gives the White House an opening. The Obama Administration decides to indict the Chinese military hackers responsible for thousands of hacks on American businesses. But the naming-and-shaming only sends China’s hackers further underground. In Episode 4, host and former New York Times cybersecurity reporter, Nicole Perlroth explores China’s hacking talent pipeline and how the PRC shifted tasking for its most sensitive operations from slipshod PLA hackers to high-precision, digital ninjas.