Why use Stripe Snoop?: This is from a SourceForge project for Stripe Snoop, a mag stripe reader that shows you what information is on the magnetic area of the ubiquitous cards in your wallet. A little scary.
Open your wallet. How many cards in there have magstripes on them? Three? Four? Five? Ever wonder what was encoded on them?
I know I did. I had six cards in my wallet with magstripes. One day a friend of mine had a $200 Magstripe reader, so I ran my cards through. Aside from the expected credit card numbers, I was surprised by the amount of personal information encoded on them. In fact, for reasons I still don’t know, 2 cards contained my social security number.