Justin Sullivan/Getty Images
Visa credit cards are arranged on a desk February 25, 2008 in San Francisco, California.
Hacking, of course, doesn't just happen online. It also happens in brick an mortar stores.
Millions of Americans learned their credit cards and debit accounts were tapped into when hackers worked their way into retailers like Target, Neiman Marcus and Michaels. Now, some major credit cards are rolling out new technologies to try and prevent theft.
Here to tell us about them is David Lazarus, business and consumer affairs correspondent for the LA Times.