They’ve met in court before, and it looks like they’re going to meet again: Wal-Mart Stores Inc., the No. 1 retailer, against Visa Inc., the No. 1 payment card network. As usual, the subject is interchange and payment card acceptance rules. Bentonville, Ark.-based Wal-Mart is suing Visa for alleged violations …

Discover Financial Service’s Pulse subsidiary last week became the latest debit network to license Visa Inc.’s so-called common application identifier (AID) on soon-to-be-issued Europay-MasterCard-Visa (EMV) chip debit cards. This latest agreement means Visa’s common AID will be enabled on cards that account for nearly 90% of U.S. PIN-debit transactions. The …

Target Corp. told a U.S. Senate committee Wednesday that the overlap in the number of consumers affected by the two-headed monster of its data breach may be 12 million or more. The nation’s No. 2 general retailer also said it is improving its data security in the wake of the …

An appellate court’s Friday decision reinstating the Federal Reserve Board’s controversial interpretation of the Dodd-Frank Act’s Durbin Amendment with its debit card interchange cap and transaction-routing requirements continues to draw fire, but whether the merchants and retail groups that brought the appeal and lost will trudge on in court remains …

In an unsurprising ruling, a three-judge panel on the federal appeals court in Washington, D.C., upheld the Federal Reserve Board’s controversial rule implementing the Durbin Amendment’s debit card provisions in 2010’s Dodd-Frank Act. A federal district judge last July overturned the rule, saying the Fed hadn’t followed Congress’s intent. Judges …

It may perennially trail McDonald’s Corp. among the leading U.S. hamburger chains, but Burger King Worldwide Inc. is on track to take the lead in mobile payments. Miami-based Burger King this week said it plans to roll out a smart phone app offering mobile payments and digital-coupons beginning in April. …

At a time when both banks and retailers are reeling from a rash of payment-data breaches, a technology company that has developed a system some believe could stop these breeches has announced that it has secured new patent protection for its technology. Mentor, Ohio-based CardinalCommerce Corp. said this week it …

A fresh proposal to introduce a same-day settlement capability for the automated clearing house network is encountering cautious optimism mixed with a healthy dose of skepticism among expert observers. But NACHA officials clearly see the new proposal not only as a blueprint for speedier payments but also as a first …

The J.M. Smucker Co.’s online store is expected to reopen next week, nearly a month after the jam-and-jelly producer closed it after discovering that hackers had broken into its computer system and stolen payment card data and other personal information on up to 23,000 customers. In other data-security news, beauty …

Despite Bitcoin’s recent travails, the fledgling digital currency has begun to win support from some of the nation’s best-known merchants. This week came news that department-store chain Lord & Taylor will start accepting Bitcoin through a mobile app called Pounce. The news followed upbeat Bitcoin results released by online retailing …