David Heun

Visa's rules for card acceptance exceed 800 pages — plus supplements — and MasterCard's are nearly 300 pages. But even though the card networks have explained their expectations in painstaking detail, the difference between strict rules and mere guidelines is much blurrier when finally given to the merchant.

The Merchant Customer Exchange, a retailer-backed mobile wallet venture of over three years in the works, has postponed its plans for a national rollout of its mobile wallet.

More banks in Australia are lining up support for Android Pay, giving Google's contactless payment system some firmer footing in international markets.

Stadiums, concert halls and other entertainment settings have long been venues in which terminal providers like NCR or Oracle would likely have units in place, offering a vast array of functions tailored to those businesses.

While Walmart's lawsuit against Visa this week centers on authorization and routing methods, the Debit Network Alliance LLC — a group of independent debit networks — is also taking issue with EMV routing in addressing how terminal software is handling the choices presented to consumers.

MasterCard has extended its financial inclusion initiative to Rwanda through an agreement with the country's government to move away from the use of cash.

Walmart and Visa have had a long and volatile relationship, and the retailer's latest lawsuit against the global card brand gives voice to a struggle that many other companies are too small to fight.

When a breach of the world's major e-mail service providers was reported last week, it drove home the fact that a single stolen password can put numerous accounts in danger.

Walmart and Visa have had a long and volatile relationship, and the retailer's latest lawsuit against the global card brand gives voice to a struggle that many other companies are too small to fight.

The payments industry saw merger-and-acquisition volume decrease 21 percent in 2015, after rising 46% in 2014.