Nihil... tsk tsk...

DoS attacks are about volume as much as anything else?
Now I KNOW you know better than that! A single malcrafted packet can crash a service or even an OS hence being a DoS. I think what you meant was that DDoS attacks are about volume/Flooding.

I can give you an example of a DDoS that I experienced this weekend.... small bar with too many people who already had their drinks camping out there ....not letting others in to order.
Denied... didn't want to fight it... left for another bar


jxrry59,
On a more serious note... I believe you said you are using vbulletin?
I would be more concerned with how many posted vulnerabilities there are out there for it.

Run a simple search for:
vbulletin + exploit

or vbulletin + vulnerability