I've been on the defensive end of attacks by employees (all Chinese citizens, living in China) in our Chinese organization attempting to breach data and infrastructure firewalls.
Once upon a time my work touched some sensitive, classified areas. I was more or less constantly harassed by rather hilarious and obvious attempts by Chinese individuals to gain access to the classified bits for a time.
We don't live in a world where scientific and technological advances are all to the good for humanity. There are politically powerful people who would see these things used to ends that hurt others for their own gain. It happens all the time, and likely will as long as humans are what we are.