At Omio, we strive for maximum security when handling payments. For this reason, customers paying with credit cards should enter their credit card verification (CVV) number during the booking process. The credit card verification number is a three- or four-digit sequence of numbers printed on the front or back of your card.
VISA, MasterCard, Maestro, Discover, UnionPay, Diners Club: The three-digit number is located in the signature area on the back of the card.
American Express: The four-digit number is located above the stamp on the front of the card.
3D Secure (3DS) is an additional layer of security that allows cardholders to authenticate their identity with the issuer of their credit card at the time of payment. This requires cardholders to enter an additional password using their particular credit card’s authentication service: “MasterCard Identity Check” at Mastercard, “Visa Secure” at Visa, “Safekey” at American Express, “J/Secure” at JCB and “ProtectBuy” at Diners and Discover.
To make online payment transactions safer, the transaction needs to be confirmed by at least two of the following three elements: