The hacker known as "Guccifer," speaking exclusively with FOX News about how he hacked into the personal email server of former Secretary of State Hillary Clinton.

FOX's Jon Decker has more from the White House:

Marcel Lehel Lazar, who goes by the moniker "Guccifer," told FOX News from a Virginia jail where he is being held that he repeatedly breached former Secretary of State Hillary Clinton's personal email server in early 2013:

(Lazar) "For me, it was easy, easy for me, for everybody."

Clinton's server held nearly 2,200 emails containing information now deemed classified. FOX could not independently confirm Lazar's claims.

But the Clinton campaign in a statement said that Lazar's descriptions of Clinton's server are inaccurate and it's unfathomable, according to the campaign, that he would have gained access to her emails.

At the White House, Jon Decker, FOX News.