Can a review really check for this? Aren't there obfuscation methods and ways to delay the trigger of the exploit? It could wait for a special network package t

Can a review really check for this? Aren't there obfuscation methods and ways to delay the trigger of the exploit? It could wait for a special network package to start the exploit. For iOS 9.3.3 there even was an app in the App Store, that could jailbreak your phone. (PG Client)