My Mastercard has this feature which goes by the name Mastercard PayPass. I don't use this feature as I rarely use my credit card anyway plus there are not a lot of businesses using it and there is also a $50.00 purchase limit on the transaction.

Apparently some first generation cards were vulnerable to hack attempts though.. Note that the info in the link is almost a year old and I would imagine that some security changes have been made by the cc companies since.