The two articles about SS7 hacking in my bookmarks:
https://www.theguardian.com/technology/2016/apr/19/ss7-hack-explained-mobile...
https://www.bloomberg.com/news/articles/2021-12-06/this-swiss-tech-exec-is-s...
Anyone knows about the advancement of the rollout of the replacement of SS7 in swiss phone operator networks, and its effectiveness to circumvent discovered loopholes over the years?