I'm curious... what reason would you have for such a thing? I mean, the only reason I can think of is if you stole a phone with the SIM card in it and didn't want it to be traced when you stuck it in the phone to erase it.
Can someone enlighten me as to a legal and reasonable explanation? I'm stuck.
Never tried it, but because it is not a magnetic storage medium, I would guess you'd need a frackin huge magnetic field to induce enough current to make a difference. I would be tempted to take a 9V battery, clip test leads on it, and then randomly pass the current though each of the different pairs of contacts on the card. That otta scr#w something up.
Darn, those address books full of 1-900 numbers are a nuisance, aren't they?