Be afraid!
A company has created a universal
credit card = a single card with a
mag stripe and a reader in the case
you store it in.
You insert your existing card(s) and
it will read and store the info on
the stripe.
You then insert their card, press the
appropriate logo and it will write
the appropriate info onto the mag
stripe...
WOW! What an easy way to pick
up other folks credit card info!