If you're an iOS app developer... The correct way to check if your app has been pirated requires two steps: 1) You must be running on a jailbroken system. Check this by trying to read from outside the sandbox. 2) Check if your app's signature is invalid. Checking this is fairly involved. Look around for code. If either of these two are false, then you've not been pirated (point (2) will be true when your app is check…
Nit: I'm almost certain that they checked for MobileSubstrate.