Hello all. I'm here to present a bit of a challenge.
meta.worldbuilding.stackexchange.com/questions/675/… - that's the main post about this, but in essence: I've made a new site for the community on Worldbuilding, and I've asked them to see what exploits and bugs there are. However, I get the feeling security experts might do a little better, so if you want to have a go feel free. I advise you to read the post to see what's already been found.