UPDATE 2: We have received comment from the Clinton Foundation. We have also updated the story with more reporting from around the web calling the hack into question as authentic.

Guccifer 2.0, the hacker persona that has leaked data from a number of Democratic Party entities this year, claims to have struck again. Its target this time: the Clinton Foundation.

The hacker took to Twitter Tuesday afternoon with a new trove of information it claims to have taken from the Clinton Foundation, the organization set up by President Bill Clinton when he exited the White House that has come under significant scrutiny this election cycle. The leak comes just hours after a much-anticipated announcement from WikiLeaks' Julian Assange was a bust.

"I hacked the Clinton Foundation server and downloaded hundreds of thousands of docs and donors' databases," the hacker writes on the site where the data is published. "Hillary Clinton and her staff don't even bother about the information security. It was just a matter of time to gain access to the Clinton Foundation server."

The leak includes documents that, if authentic, appear to include a list of foundation donors, a list of House Financial Services Committee members and a list of financial services firms and how much funding they received through the Troubled Asset Relief Program (TARP), an initiative established in 2008 under President George W. Bush for the government to purchase toxic assets and equity from financial institutions impacted by the financial crisis.

Companies on the list include JPMorgan Chase (JPM) , Morgan Stanley (MS) and UBS (UBS) . Related: Clinton and Trump Both Pose Threat to Wall St., Experts Say

"Once again, we still have no evidence Clinton Foundation systems were breached and have not been notified by law enforcement of an issue," said a Clinton Foundation official. "None of the folders or files shown are from the Clinton Foundation."