From Fox News:
The infamous Romanian hacker known as "Guccifer," speaking exclusively with Fox News, claimed he easily – and repeatedly – breached former Secretary of State Hillary Clinton’s personal email server in early 2013.
"For me, it was easy ... easy for me, for everybody," Marcel Lehel Lazar, who goes by the moniker "Guccifer," told Fox News from a Virginia jail where he is being held.
Guccifer's potential role in the Clinton email investigation was first reported by Fox News last month. The hacker subsequently claimed he was able to access the server – and provided extensive details about how he did it and what he found – over the course of a half-hour jailhouse interview and a series of recorded phone calls with Fox News.