By their own account, the auditors Navy Malela and Gradi Koko enjoyed a comfortable life in the Democratic Republic of Congo (DRC). Their children went to good schools, and they earned more than enough to cover their expenses. “It was a good life,” Koko told NK News.

All of that changed when the two leaked thousands of internal bank documents that laid bare a wide range of financial crimes — including evidence linking their employer to North Korea-controlled entities operating in Africa.