We Have Met the Enemy and He is Us Maxim: The insider threat from careless or complacent employees & contractors exceeds the threat from malicious insiders (though the latter is not negligible.)

Comment: This is partially, though not totally, due to the fact that careless or complacent insiders often unintentionally help nefarious outsiders. Compiled by Roger G. Johnston, Ph.D., CPP, Argonne National Laboratory