Key security features on then-Secretary of State Hillary Clinton Hillary Diane Rodham ClintonJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Momentum growing among Republicans for Supreme Court vote before Election Day Warning signs flash for Lindsey Graham in South Carolina MORE's home email server were disabled for weeks in 2010, The Associated Press reports.

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When State Department staffers struggled over a serious technical problem involving Clinton's server, they disabled security features that left it more open to hackers, according to emails obtained by the AP.

Weeks later, Clinton's staff shut down the server after attacks by hackers.

The staff disabled specific software intended to block phishing emails that could deliver dangerous viruses.

After staffers turned off those features, they said in an email: "We view this as a Band-Aid and fear it's not 100 percent fully effective."

Clinton has previously denied there is any evidence her email server, which she exclusively used while at State, was ever hacked. The campaign didn't reply to request for comment to the AP Wednesday.