A hacker has begun distributing several stolen memos about Benghazi that were sent to former Secretary of State Hillary Clinton and stored in a former White House aide’s account.

Dubbed “Guccifer,” the hacker sent out four memos over the weekend that had been sent to Ms. Clinton from her long-time friend and political ally, Sidney Blumenthal, The Smoking Gun reports. Guccifer sent the emails to hundreds.

Mr. Blumenthal, 64, worked in the White House as a senior adviser to President Bill Clinton. In addition to hacking Mr. Blumenthal’s account, Guccifer also broke into former Secretary of State Colin Powell and family and friends of the Bush family, Fox News says.

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The details of the memos aren’t yet clear.