The document discusses the vulnerabilities of the SS7 mobile network and proposes methods to make it more difficult for attackers. It emphasizes the need for operator-level protection and introduces an open-source SS7 firewall.
The talk covers advanced SS7 attacks and defenses, including tricks to confuse attackers and make their work harder.
The document also highlights the potential for reducing exposure to active and passive attacks through the adoption of a signaling firewall.