Ex-Clinton staffer files immunity agreements under seal

"A separate review by the State Department's inspector general concluded last month that Clinton and her team ignored clear internal guidance that her email setup broke federal standards and could have left sensitive material vulnerable to hackers. Clinton has called her decision to rely on the private server a mistake, but contends she violated no laws.

An FBI and Justice Department investigation continues into whether sensitive information that flowed through the server was mishandled."

Does anyone know how serious "her email broke federal standards and could have left sensitive material vulnerable to hackers"????/ Would this be similar to leaving sensitive material unattended on your desk ?? That was a violation of National Security and subject to a court martial when I served in the military and think it is still the rule of law ??