It&#x27;s sloppy to call a vulnerability a backdoor. Yes, Apple failed to fully secure the 5c and may even possibly have failed to fully secure the 6s against this attack. So it is vulnerable to this attack, but the backdoor doesn&#x27;t currently exist.<p>Also, I would expect if it is technically possible, that Apple will be pushing an iOS update which closes this particular vulnerability going forward. Obviously not an update the FBI will be installing on this particular phone!<p>I believe their intent is to make iOS secure even against an adversary that has physical possession of the phone and even against an adversary with the ability to sign custom builds.