Table of contents SS7 Signalling in Mobile Networks SS7 Attacks History Intro CAS - Channel Associated Signaling CCS - Common Channel Signaling Devices Cards 🟢 SSP - Service Switching Point 🟢 STP - Signaling Transfer Point 🟢 SCP - Service Control Point Stack Layers Transport 🟢 MTP1 MTP2 MTP3 Applications 🟢 SCCP ISUP 🟢 TCAP 😇 MAP Link Types A - Link B - Link C - Link D - Link F - Link SS7 Addresses Point Codes SSNs 🟢 GTs Circuits E1 T1 SS7 Attacks Intro Location Tracking Call and SMS Interception SMS Attacks More Technologies GSM Diameter SIM Cards GTP SIP IMS UE- Mobiles ISDN