Originally posted by jmmijo
Mainly it's the thrill of the challenge and because they can. If you wanted to climb to the top of K2 or Everest why not. In some ways these hackers help to point out security flaws that either the web site operator and/or their host needs to fix.
It would be better if these groups would just notify the operator of this hole and give them a chance to plug it but it's their few minutes of fame
As for M$, not sure if anyone has ever tried, would be fun but they have so many backup servers so it would be taken down probably within seconds of the hack.
The New Zealand MS web site got hacked as they didn't apply their own IIS patches on their server. This happened a while back, like 1-2 years ago...