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Comment by DANmode

8 hours ago

The “new” phone system (SS7) still relies on implicit trust and a lack of security.

that is not new. It is newer than the phreakable one but it is many decades old from before there were things like encryption, and Linux.

  • Current system, unfortunately.

    • No, that's not true, there is no single current system. There is no telephony equivalent to BGP. Each separate interconnection uses whichever protocol it wants to.