My claim is that the resources required to steal Apple&#x27;s keys are significantly higher than the resources required to modify iOS in the way required. Since an successful exploit requires both modified iOS and the keys, if I am correct then creating the modified version does not significantly decrease the resources required to exploit.<p>When I claim it can&#x27;t be used by anyone else, I mean without Apple&#x27;s signing keys. There are no shortage of jailbreak developers that would be happy to work for whoever pays them, and could build tweaks in to iOS with the signing keys.