Multiple outlets are reporting a massive data breach at eBay. eBay is about to (or has just) announced that all eBay users should change their eBay passwords ASAP.
https://www.yahoo.com/tech/ebay-hacked-urges-all-members-to-change-passwords-86405258249.html
http://grahamcluley.com/2014/05/ebay-confirms-security-breach-users-asked-change-passwords/