Addressing Serious Hacking Issues

Do you try to stop rain from being a possible weather pattern or do you water-proof your house?

When you're under siege do you try to kill the army that has you surrounded and outnumbered, or do you fortify your walls further and try to wait them out and keep them from finding ways in?

A good offense is a good defense. I don't know if you've played a real time strat war game, but, although it's great to have a defense, it's also nice to keep cutting at their army before they reach your defense. Attack the websites, cutting down the numbers from the source, then let their numbers walk into the defenses only to step on mines