> Even if there were, what's stopping the "bad" gangs from pretending to be the "good" ones? Trademarks? I have no idea if that is actually done, but the crimi

> Even if there were, what's stopping the "bad" gangs from pretending to be the "good" ones? Trademarks? I have no idea if that is actually done, but the criminals could simply cryptographically sign a unique message for each attack.