Charles Delavan, the tech advisor for Hillary Clinton’s campaign, revealed details about the emails published on WikiLeaks during Clinton’s presidential run, in an interview with New York Times on Tuesday.

Hillary Clinton Tech Advisor Charles Delavan Speaks Out On Email Hack

Delavan claims that a misspelling in an email he sent out earlier this year, is responsible for WikiLeaks releasing stolen emails from the inbox of Clinton campaign chairman John Podesta.

Delavan explained that months prior to the WikiLeaks article, hackers sent several malicious messages to members of Clinton’s campaign.

The messages appeared to be legitimate security warnings from Google’s help desk, instructing recipients to visit a website where they would be instructed to re-enter their Gmail password as an alleged safety precaution.

Sara Latham, Podesta’s chief of staff, forwarded this Google warning to Delavan after it arrived.

“This is a legitimate email,” Delavan wrote back. “John needs to change his password immediately, and ensure that two-factor authentication is turned on [for] his account.”

Either Podesta or an aide likely clicked on the fake link they thought to be “legitimate” and disrupted their Gmail security.

Delavan admitted that he knew the Google warning was fake and meant to write that it was an “illegitimate” email. The tech advisor believes his typo is an error that has “plagued him ever since.”

Researchers at IT firm SecurityWorks, have since accused Russian hackers of sending out the malicious links that compromised Podesta’s account.

Bob Corker, Republican chairman of the Senate Foreign Relations Committee, said this week that lawmakers will hold open and classified briefings to determine whether or not Russian hackers attempted to interfere in the 2016 presidential election.

“We are going to systematically walk through the entire Russia issue and fully understand what has transpired,” Mr. Corker declared.