Researchers are increasingly confident that a recent massive ransomware outbreak is linked to a known North Korea state hacking group. Analysis revealed substantial commonalities in the tools, techniques, and infrastructure used by the attacks and those seen in previous Lazarus attacks, making it highly likely that Lazarus was behind the spread of WannaCry. Lazarus is suspected of Sony hacking and Bangladesh Central bank hacking. FBI, NSA, and DHS are making every effort to seek out the attackers. Sooner or later, it will be known who is behind the hacking.