Chip+PIN is the “strongest” encryption method since it’s much harder to steal a PIN than fake a signature. Currently, most US banks issue Chip+Signature cards. As time moves on, they’ll migrate towards Chip+PIN.
What is EMV (Euro-Mastercard-Visa), or chip card acceptance?
EMV, otherwise known as Chip Cards, are the new payment technology adopted by the card associations. You’ll also hear it called “Chip and Pin” or “Chip and Signature” – but not matter the moniker, it’s important that all in-person merchants accept EMV transactions.