As just proven by my daughter's card, it is now ridiculously easy for someone to make a new card from near-public info, and go on a shopping spree in Buffalo. They don't close off travel areas any more, because their 'anti-fraud is so advanced', or so they tell me on the phone. This is only noticed on your bill, and then you don't have a card any more for a week or two.
Make sure you have another card. It's so easy in Buffalo because the US doesn't have many chip terminals yet, and fooling around with the mag stripe is child's play. Anyway, expect this soon for everybody, it's just too good of a scam. Another billion lost by the big cards, who cares?