Hillary Clinton speaks during a community forum in Davenport, Iowa, on Oct. 6, 2015.
Charlie Neibergall—AP
October 8, 2015 7:27 AM EDT

A technology firm that worked on Hillary Clinton’s email server warned the former Secretary of State’s team over the summer that her private email was vulnerable to hackers.

Datto, a technology subcontractor that specializes in backing up data, told Platte River Networks, the company managing Clinton’s account, to upgrade security on the email server in August, the Washington Post reports. Representatives from Datto were worried that Clinton’s server would be targeted once it became infamous over the summer.

But Platte River Networks did not upgrade any security on the server because, according to a spokesperson, the FBI had given express orders not to change anything on the system. Datto says there is no evidence that the system was hacked.

The revelation comes amidst an ongoing controversy over Clinton using a private email server during her time as Secretary of State. Clinton has said that confidential data was never put at risk.

[Washington Post]

Write to Tessa Berenson at tessa.berenson@time.com.

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