Those are two good points: not having to remember a PIN and having a chip that's resistant to counterfeiting are both significant benefits, and the second is one that should soon be enjoyed here in America. EMV is due to be rolled out nationwide over the next two or three years. However, PINs do have other security advantages, as the Payments Council in the U.K. reports on its website.It suggests that signatures -- which can be forged, and which are frequently not checked at all -- make it easier for a stolen card to be used fraudulently. Meanwhile, a chip-and-PIN card, absent its four-digit number, is useless to a thief. The Payments Council talks about signature authorizations giving "fraudsters a window of opportunity between the time they steal a card and the time the owner reports it lost or stolen."