10. Gawker

Date: December 2010

Impact: 1.3 Million Ids and Passwords stolen

In December 2010 a hacking community that called themselves Gnosis had invaded the Gawker network to acquire more than a million passwords and gained access to the original source code of the network. Gawker did not hide the breach and immediately informed its user to change their credential while it was acting on the incident.

9. AOL

Date: August 6 2006

Impact: Shopping and Bank data stolen from 650,000 users

This was not even a breach. This is what TechCrunch calls “utter stupidity”. A text file was released by the head of AOL’s research department, Dr. Arbdur Chowdhary. Somehow the file got public and data of users across AOL network were flying around on the web.