The bureau wrote in its report that it was unable to track down all of Clinton’s electronic equipment because it had been destroyed or lost. One staffer told investigators he destroyed two mobile devices “by breaking them in half or hitting them with a hammer.” The FBI said it requested 13 devices from the law firm representing Clinton, and the firm said it could not produce any.
The FBI wrote that “investigative limitations, including the FBI’s inability to obtain all mobile devices and various computer components associated with Clinton’s personal e-mail systems, prevented the FBI from conclusively determining whether the classified information transmitted and stored on Clinton’s personal server systems was compromised via cyber intrusion or other means.”