I hope we all are making every effort to keep our sites secure... and that no matter how big we might be... with all those departments, etc., we do have a single directive and ability to maintain that security.
And if you haven't implemented that, please do so!
Making no excuses for Zappos, of course, just reminding all that "there for the grace of..." go I. Check your house. Make sure the doors can be locked when they need to be locked.