Iranian hackers have elaborated a sophisticated phishing scheme to takeover Gmail accounts. Iranian hackers used phone and email to bypass Googles two-factor authentication system. The list of targets includes a director at the Electronic Frontier Foundation and Iranian activists. The attacks appear to be politically motivated, according to the senior research fellow at the Citizen Lab, John Scott-Railton,. The Iranian government has increased its cyber capabilities in the last years, for this reason US intelligence consider the country one of the most dangerous threats alongside with Russia, China and North Korea.”]
Source: http://securityaffairs.co/wordpress/39690/cyber-crime/iranian-hackers-gmail.html