He is best known for alleged hacks into accounts held by the Bushes that revealed private family photos and paintings and Colin Powell

Lazar, aka Guccifer, claims he hacked Clinton's private server and decided against sharing her files - but there's no corroborating evidence

Marcel Lazar also broke into Sidney Blumenthal's account and released his

The Romanian hacker known as Guccifer who claims he accessed Hillary Clinton's personal files will plead guilty to federal cyber crimes charges.

Her campaign says that is not true - her server was never hacked - and his charge has not otherwise been corroborated.

Marcel Lazar, 44, may have struck a plea deal with prosecutors, however, that allows the feds to proffer information about the alleged hack for its investigation into the security of her emails and server.

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The Romanian hacker known as Guccifer, who is charged with breaking into computer accounts of the Bush family, Secretary of State Colin Powell and others, will plead guilty to federal charges

Last month Lazar pleaded not guilty last month to a host of crimes including cyberstalking, unauthorized access to computers and obstruction of justice.

At a change-of-plea hearing is scheduled Wednesday at U.S. District Court in Alexandria, Lazar, of Arad, Romania, will cop to some of the crimes, according to court records.

The records do not specify which charges Lazar will plead to. His court-appointed lawyer did not immediately return a phone call from AP seeking comment Monday.

One possibility is that the feds may have enticed him into a deal by agreeing not charge him for invading Clinton's server, if he did indeed break into it, so long as he helped them with their security investigation.

The FBI continues to investigate whether Clinton's unique email and server set up put national security information at risk and if it was accessed by any outside actors, such as Guccifer,

Lazar is facing charges already for breaking into computer accounts of the Bush family, Secretary of State Colin Powell and others and heads to court tomorrow.

He says he broke into longtime Clinton associate Sidney Blumenthal's account and is responsible for the release of his correspondence with the then-secretary of state.

Lazar made news his month with the unsubstantiated claims he hacked into Hillary Clinton's private email server.

He is best known for alleged hacks into accounts held by the Bushes that revealed private family photos and paintings connected to former presidents George H.W. Bush and George W. Bush.

He was indicted in the U.S. in 2014. A Romanian court approved him for extradition earlier this year.

The indictment does not identify the victims by name but describes 'Victim 1' as 'a family member of two former U.S. presidents.'

The Bush family member's hacked AOL account resulted in leaked emails, medical information, photographs, home addresses, and telephone numbers, according to the indictment.

The website The Smoking Gun published some of the hacked photos, including pictures of paintings by George W. Bush, and a photo of George H.W. Bush in the hospital.

The Smoking Gun said the hacked account belonged to Dorothy Bush Koch, the daughter of the elder Bush and sister of the younger.

The indictment also identifies 'Victim 3,' believed to be Powell, and says his Facebook account was hacked, and posts went out under Powell's name stating 'You will burn in hell, Bush!' and 'Kill the illuminati!'

Lazar claims he also hacked Democratic presidential candidate Hillary Clinton's private server and decided against sharing her files

Guccifer likewise claimed credit for hacking an email account of Sidney Blumenthal, a confidant of Hillary Clinton, in March 2013.

That subsequent leak of Blumenthal's emails was the first time that outsiders became aware of Clinton's private 'clintonemail.com' address, which she used to communicate with Blumenthal.

It has now become part of an FBI investigation into whether Clinton mishandled sensitive emails.

Blumenthal appears to be described in the indictment as Victim 5, 'a journalist and former presidential advisor' whose account was hacked in March 2013.