Online travel agent Booking.com has warned of a data breach affecting reservation-related information. Users urged to stay alert after PIN codes changed.

The idea of allowing consumers to use PIN debit cards to pay online merchants has been a tough sell in the payments business, but observers hope a deal announced Thursday may give it a much-needed ...

First Data Corp.'s decision to support Acculynk Inc.'s PaySecure Internet PIN-debit payment system could give debit payments a boost at a time when banks have doubts about the future of debit cards.

BLACK HAT USA—Las Vegas—The manner in which many PIN pads used by consumers to pay for purchases and communicate with point-of-sale systems make it very easy for attackers to steal payment card data, ...