Quote from Neodude:
Sorry you had to go through that experience. You should consider yourself lucky that nothing worse came of it. My mother had a gun pulled on her while taking the train to work a year ago, but this is the first time I've heard of a drive-by mugging.
On the brighter side I don't think you have to worry about your strategies being used, if the guy has to mug people to get by then he is probably not smart or financed enough to use the information in your briefcase in the first case. I also seriously doubt he belongs to the right social circles where he could sell the information.
-Neo