The system, already widely used in Europe and Asia, can accommodate cards carrying tiny microprocessors, which makes it harder for cybercrooks to use stolen data.
U.S. retailers have been so focused on cutting costs and expanding their online presence in the past decade that they have not spent enough of their technology budgets on protecting customer data, security experts and IT service providers said.
While retail spending on overall technology was expected to rise 4 percent annually between 2012 and 2017, U.S. stores spend only roughly 2 percent of their tech budgets on security, with the bulk going to improving their ecommerce, technology advisory firm IDC Retail Insights said.
(Read more: Target CEO defends 4-day wait to disclose massive breach)
Unlike their peers in other industries, most retailers still focus on just meeting the basic standards set by the payment card industry rather than substantially beefing up safeguards against increasingly sophisticated attacks, security experts said.
"Retailers have to assume that they are constantly being targeted and actually constantly being penetrated," said Eddie Schwartz, a vice president at Verizon Enterprise Solutions, who urged retailers to take a more proactive approach.
Pressure from Congress, consumer groups and the banking industry following recent theft of customer data at Target, Neiman Marcus, and others may be the turning point to get the retail industry to spend more on security, experts said.
For example, Dinesh Bajaj, the vice president of retail and logistics practice in Americas for Infosys, expects retailers to spend more in coming months on encrypting credit card data while storing it in multiple systems.
IDC Retail Insights expects spending by retailers in 2014 specifically for security in the United States to be $720.3 million, an increase of 5.7 percent from last year in part because of the recent breaches. Total tech spending by retailers this year is expected to hit $36.34 billion.
"It's clear that companies need to do a lot more, that they continue to make basic mistakes," Federal Trade Commission Chairwoman Edith Ramirez said at a hearing on Tuesday looking into massive data breaches at Target and Neiman that affected millions of shoppers.
Lagging in security spending
Retailers spend 4 percent of their technology budgets on security, compared with 5.5 percent for banks and 5.6 percent for healthcare companies, according to technology research firm Gartner.
Security experts urged retailers to set up a non-competitive "collaboration space" where they can virtually meet to share best practices and real-time alerts about data breaches as their peers in telecoms, financial services, utilities, transportation and energy have done.
(Read more: Hotels data breach could lead to tipping point)