At the end of Clinton’s tenure of secretary of state in February 2013, her private server is still being managed by Bryan Pagliano and Justin Cooper, with Pagliano doing most of the technical work and Cooper doing most of the customer service work. The management of the server will be taken over by the Platte River Networks (PRN) computer company in June 2013. It seems possible that the server is not as actively managed in the months in between.
In September 2016, Cooper will be questioned by a Congressional committee. Representative Jason Chaffetz (R) will ask him, “[Y]ou stepped back from the day-to-day activities with the Clintons about the time of the transition, is that correct? As she left office?”
He will reply, ‘Yes.”
When asked about his knowledge of what happened to server security after the hacker known as Guccifer broke into the email account of a Clinton confidant and publicly exposed Clinton’s email address on the server in March 2013, Cooper will reply, “At that point in time I was transitioning out of any role or responsibility with the server as various teams were selecting Platte River Networks to take over the email services and I don’t know that I had any sort of direct response.”
Additionally, when Cooper will be asked about his contact with PRN, he will say, “My interaction was handing over user names and passwords and that was the totality of the interaction I’ve had. I’ve never had interaction with them.” (US Congress, 9/13/2016)
It is not known if Pagliano similarly cuts down his involvement with managing the server during this time, since he has refused to publicly comment about his experiences. The FBI has mentioned nothing about the management of Pagliano or Cooper during this time period. (Federal Bureau of Investigation, 9/2/2016)