In August 2018, the DoJ unsealed the indictment of a North Korean spy, Park Jin Hyok, whom they claim was behind the hack against Sony and the creation and distribution of the WannaCry ransomware. The North Koreans have been at the center of many different campaigns over the past six or so years. The FBI methodically took apart the various pieces of malware and put together attack timelines on the three Sony breaches and three different Wanna Cry versions. Heres what the FBI discovered about how Sony was hacked and what lessons CISOs and other IT managers can learn from this remarkable situation.”]
Source: https://www.csoonline.com/article/3305144/the-sony-hacker-indictment-5-lessons-for-it-security.html