Re:SS7 MITM Attack Against WhatsApp and Telegram
by bogomipz on Tuesday May 10, 2016 @07:17PM
(#11671445)
But you can just connect to a carrier SS7 network because you bought an SS7 gateway appliance or because bought a SIP trunk to some third party. It doesn't work like this. You need to have an agreement with a carrier to even talk to their gateway. These are usually well vetted as well because you are entering into a financial agreement with a carrier when you connect to them this way.
https://www.youtube.com/watch?v=lQ0I5tl0YLY
Its an hour, but I highly suggest the talk.