Biggest data breaches of all time

POSTED: 06:27 AM PST Dec 19, 2013    UPDATED: 07:38 AM PDT Apr 18, 2014 
Credit cards

A security breach at Michaels stores lasted eight months and affected about 3 million customers, the store said Thursday. The craft store chain made news about the hack public three months ago and has been investigating since then. Take a look at some of the biggest data breaches of all time.