I had the same thought on SS7 being kept vulnerable on purpose. With continuous attempts in EU and elsewhere on tapping the E2EE communication and the fact that email remains insecure despite so many proposals makes me think this really is one of those things that get agreed upon behind closed UN doors. And I am NOT a fan of conspiracy theories.
I think that lack of information, i.e. any effort to remediate this, is an information in itself.
I think that lack of information, i.e. any effort to remediate this, is an information in itself.