As any one who has had a high level security clearance knows, there is NO INTENT clause when it comes to mishandling. The assumption is because he have that clearance and have been briefed on any classified information you deal with, mishandling it is purposeful. Believe, people with high level security clearances are briefed often enough that they know not to mishandle. Ignorance of mishandling is not an excuse.
Of course in Hillary's case she had good criminal reason for the info by-pass: She made sure ahead of time her pay for play quid pro quo was not documented. Funny how all these tapes of Trump figures talking to Russians gets leaked, but these same supposed investigations of the Russians has nothing on Hillary selling 20% of American Uranium to the Russians. Simply AMAZING how we don't have any leaked conversions about her dealings here! Almost as if the real target of the spying was not Russia but Trump!