Biggest data breaches of all time

POSTED: 6:27 AM PST December 19, 2013    UPDATED: 7:02 AM PDT May 5, 2014 
Credit cards

Target CEO Gregg Steinhafel has resigned in light of last year's data breach, which included personal information of up to 110 million Target customers. Take a look at some of the biggest data breaches of all time.