2007 — TD Ameritrade: TD Ameritrade settled a class action lawsuit to…

2007 6.3M records affected

Technical writeup

TD Ameritrade settled a class action lawsuit to compensate as many as 6.3 million TD Ameritrade customers whose data was stolen by hackers costing the Nebraska online brokerage firm less than $2 per victim.

Root cause

Hacked

References

http://www.wired.com/threatlevel/2008/07/ameritrade-hack/