2010 — CheckFree Corporation: Customers who went to CheckFree's Web sites between…
Technical writeup
Customers who went to CheckFree's Web sites between 12:35 a.m. and 10:10 a.m. on the day of the attack were redirected to a Ukrainian Web server that used malicious software to try and install a password-stealing program on the victim's computer.
Root cause
Hacked