Democratic presidential candidate Hillary Clinton and her team ignored clear guidance from the State Department that her email setup broke federal standards, which could have left sensitive material vulnerable to hackers, an independent audit has found, as reported by the Associated Press.

In 2011, hacking attempts into then-Secretary of State’s email forced Clinton to stop using it altogether at a certain point. However, she insists her personal server was never compromised.

The 78-page analysis says Clinton ignored clear directives and never sought approval to conduct government matters over a private email server. It also states she never demonstrated that the server and Blackberry she used “met minimum information security requirements,” AP reported.

In 2010, information management staff at the State Department was concerned that Clinton’s emails did not meet federal record-keeping requirements. The staff’s director told them the Secretary of State’s personal email system had been reviewed and approved by legal staff and that “the matter was not to be discussed further,” according to AP.

The audit found no evidence of a legal staff review or approval. Had there been a review, the audit said it would not have passed because of security risks.

This audit looked at the emails of the past five secretaries of state, and stated that none of them “manage(d) effectively the legal requirements and cybersecurity risks associated with electronic data communications.”

Clinton campaign spokesman Brian Fallon responded to these claims Wednesday: “The inspector general documents just how consistent her email practices were with those of other secretaries and senior officials at the State Department who also used personal email.”

Fallon noted that the report says “her use of personal email was known to officials within the department during her tenure, and that there is no evidence of any successful breach of the secretary’s server.”

Republicans said this audit shows Clinton was in obvious violation of the Federal Records Act and her opponents say it is proof that Clinton has not been honest about her private email use. They also cite this as fresh evidence that she is not trustworthy or qualified to be commander in chief, AP reported.