SS7 is broken beyond repair, infact it being a walled garden is the only security it ever had.
This ccc talk is a good intro - https://media.ccc.de/v/31c3_-_6122_-_en_-_saal_1_-_201412271...
This ccc talk is a good intro - https://media.ccc.de/v/31c3_-_6122_-_en_-_saal_1_-_201412271...
https://www.schneier.com/blog/archives/2015/08/ss7_phone-swi...
...he points out that telecom and spy agencies were very tight in U.K. (and often U.S.). Many features that benefit spying are there on purpose. As he predicted, they continued to be a problem in upgrades due to the compatibility argument and downgrade attacks following. Worst, certification or connection to a major wireless standard might force you to include weak crypto or security in your product.
It's all crap in terms of security. Sure they're reliable... amazingly so in some cases... but they're not secure and that's on purpose.
"broken beyond repair... infact it being a walled garden is the only security it ever had."
bogomipz countered with how robust the protocol is. Your critique is true if bogomipz was only countering the words "broken beyond repair" with no context. In context, though, the counter would imply disagreement with the security claim.
"isn't claiming that SS7 is secure. Nobody thinks it is."
Hopefully true. :)