WHID 2007-39: Hacker sabotages Peru president's Web site

Defacements seem to start dominating this list. Alas, they are the most obvious web site hacks out there. While not every defacement is reported in the Web Hacking Incidents Database, key ones are. I included this one since the attacked web site is significant, and since it emphasizes what is becoming a major goal of attacking: politics and international affairs.
As a side note, this incident is also interesting because it was repeated after discovered and presumably fixed, which goes a long way to show how much effort there is in protecting web sites and how difficult it cab be.

Additional information:

• Hacker sabotages Peru president's Web site [Middle East Times, Jul 26 2007]