Senator Claire McCaskill of Missouri was one of three candidates recently targeted by a notorious Russian hacking unit.
As in 2016, a fake Microsoft domain name is being exploited to launch phishing attacks, VP reveals.
Russian hacker group Fancy Bear targeted 573 email addresses of top U.S. diplomats and security officials.
Microsoft says Fancy Bear hackers are targeting Windows users.
'Fancy Bear' has been releasing details of athletes' Therapeutic Use Exemptions.