… or should I say, the most universal messaging. It won’t reach someone without a mobile phone.
I’m responding to this tweet that stated:
Re: SS7. Some infra is too old and widespread to secure; you have to pave over it. Cellular voice and SMS are going the way of dodo anyway.
That, in turn, was in response to the 60 Minutes show that demonstrated that hackers only need your phone number to spy on all your text messages and calls.