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The three cease and desist orders and one written agreement had cited separate concerns at JPMorgan Chase, Discover, Deutsche Bank and RBS.

The card networks' single "click to pay" button — an implementation of Secure Remote Commerce — is drawing some negative attention from merchant groups and independent networks that see it as a way to steal volume from alternative payment providers.

Shares of Discover Financial Services slumped the most in more than a decade after credit card lender warned that it will spend more on marketing and technology, including to beef up collections on troubled debt.

The credit card lender has seen problem loans spike since it introduced a feature that lets at-risk customers restructure loans through its online and mobile channels.

PayPal is moving ahead with plans to integrate with both Amex and Discover, and the details of how PayPal will work with these card networks are starting to take shape.

PayPal is moving ahead with plans to integrate with both Amex and Discover, and the details of how PayPal will work with these card networks are starting to take shape.

Discover Financial Services has promised to issue all new and replacement cards in the contactless format.

The case — the card issuer's third in six years — is an example of the legal peril that banks and other companies continue to face over the use of automated phone calls for debt collection and other purposes.

The card networks’ new buy button, called "click to pay," is merely a stepping stone to providing a foundation for pervasive, invisible payments.

Following months of preparation, Visa, Mastercard, American Express and Discover announced the launch of "click to pay," a new streamlined checkout process that functions similarly at all participating e-commerce sites.