After a “naming and shaming” exercise by US authorities in February, Chinese hackers stopped their activities but have now renewed them.

Three months after hackers working for a cyberunit of China’s People’s Liberation Army went silent amid evidence that they had stolen data from(...)

A Chinese border guard tries to stop his picture from being taken as he and his compatriot patrol the Tumen river in China’s Jilin province, across from North Korea. Photograph: Peter Parks/AFP/ getty images

A container lorry trundles across the bridge from Tumen to North Korea, slowing to allow for speed bumps. At the far side a large portrait of N(...)