Cyber expert who stopped 'WannaCry' attack arrested in U.S. on hacking charges

By Dustin VolzSAN FRANCISCO (Reuters) - A cyber security researcher widely credited with helping to neutralize the global "WannaCry" ransomware attack earlier this year has been arrested on unrelated hacking charges, according to court documents unsealed on Thursday.Marcus Hutchins, a British-based malware researcher who gained attention for detecting a "kill switch" that effectively disabled the WannaCry worm in May, was detained by the FBI in Las Vegas on Wednesday, a U.S. Justice Department s