Security researchers have noticed a similarity between an earlier version of WannaCry and a hacking tool used by the Lazarus Group. The Lazarus Group has been blamed for a string of recent banking heists, including the 2014 Sony hack. The evidence is far from a smoking gun, and may prove inconclusive, security experts say. But its still possible a separate hacker may have stolen snippets of code from past malware associated with the shadowy group, security firm Kaspersky Lab says. Symantec is investigating how prevalent this shared code is.”]