Romanian hacker Guccifer has admitted to compromising almost 100 email and social media accounts belonging to U.S. government officials, politicians and other high-profile individuals. Marcel Lehel Lazar, 44, pleaded guilty Wednesday to charges of unauthorized access to a protected computer and aggravated identity theft. He is serving two prison sentences, for a total of seven years in prison in Romania, where he was already serving a sentence for hacking into various local public figures. Lehel: People should be careful with what they disclose about their lives online.”]