EMV (Europay, Mastercard and Visa) is a standard developed by Europay, Mastercard and Visa to find a secure way to authorize credit and debit card purchases. EMV uses computer chip technology to authenticate and secure payment transactions. EMV chip cards are essentially tiny computers that are nearly impossible to counterfeit. When paying with a chip card, the card information is sent as encrypted data. This makes the data unusable in case someone does get a hold of it.