Google isnt susceptible to this kind of social engineering attack.

It requires the existence of a customer service in the first place. Good luck trying to call Google.

There is no "magic" solution, there are just solutions. But to suggests its all the same... Thats just lazy.

Apple is more vulnerable, because they do do customer support. Sony was more vulnerable, because they just dint give a shit, and didnt bother anything to secure it.

Microsoft and Google still have a zero incident record. After all this time. They even went beyond their own responsibility many times, getting police involved because they suspected targetted (political) malware.

And no, in the world of formal discrete systems (computers) there are provable correct, and provably incorrect solutions. For example: DRM can always be hacked, but we can secure ourselves from the middlemen.

Any analog with a "door" deserves only ridicule.