Web software is incredibly simple. Having someone's ruby code doesn't really help you much. Hackers just try a few SQL injections, stuff script tags into all of the form fields, and call it a day. More advanced hacks on webapps are virtually unheard of. Certainly custom-designing a hack for some company isn't going to happen. It's a waste of time, because chances are you won't find some complicated hack that wasn't already exposed through the spamming techniques I mentioned above. And most larger, "worthwhile" companies tend to run their own in-house CI and not use Circle.
