Advertisement AdvertisementAdvertisement Advertisement"No social engineering required," Proofpoint said in a blog post outlining the hacking campaign. They said the campaign heavily targeted Ukraine before hitting users in the U.S. and other members of the NATO ​military alliance. Laundry Bear is one of several hacking groups the U.S. alleges are working for Russian security services. Like other digital intelligence gatherers, Russian cyber spies routinely target email services. ​In April, Reuters reported Russian ‌hackers had broken into scores of email accounts belonging to prosecutors and ​investigators across Ukraine.