All too familiar with the 'SOP' arguments concerning violations of trust. The pervasiveness of this sort of behavior leading to a grudging acceptance of it or even suggestion for its necessity for good business is a topic too broad for this forum.
The doofus label goes more to the exec's sending of the material to other execs using email, for which sort of actor I have been at a loss to find any other suitable descriptive term.
Unaware of the incriminating trail he was leaving? - doofus
or indifferent to the same? - two sets of rules, leading perhaps to
Expecting the other execs to accept incrimination also by receiving the material? - doofus
The last being the the IBM culture question.
Finally, for the business-world weary, there's nothing in this story (yet) to say that HP doesn't still have the 'trade secrets', the show of purging the VP notwithstanding.