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As mobile commerce and other new technologies change the way people shop, fraudsters are changing their methods to adapt. Banks, fintech providers and consumers are all looking at security in new ways.

Total holiday sales are expected to reach $863 billion in 2014, up from $822 billion last year. That is a staggering amount of money, and the weeks between Thanksgiving and Christmas make or break a sales year for large and small businesses alike.

After spending six of his 10 years in the U.S. Air Force as a cybersecurity professional, Chris Gerritz brought his expertise to the retail payments industry. His startup, Infocyte, operates on the premise that hacks into payment systems are inevitable.

Target Corp. must defend itself against claims that its failure to shield computer systems allowed hackers to steal the account data of millions of shoppers, forcing banks to reimburse fraudulent charges and issue new credit and debit cards.

The annual Cyber Monday shopping holiday is a boon to mobile payments, but remains a significant challenge for e-commerce security.

A year after the Target data breach prompted retailers to step up their migration to EMV-chip acceptance, many consumers finally have EMV cards or can access the same security through Apple Pay's new mobile wallet. But will they finally change their habits?

A significant number of consumers are concerned about credit card fraud, particularly in light of recent, high-profile data breaches disclosed by Home Depot and Target, according a survey released by FICO.

Payment technology processor Acculynk has agreed to buy the intellectual property of PayPlum.

Most small merchants are not security experts, but the past year's string of retailer breaches may slowly be changing their mindset.

The growing influence of nonbank companies poses a danger to the financial system, and perhaps a national security threat, BB&T's Kelly King says during a wide-ranging conversation among big-bank CEOs.