Threat Intelligence (Telecom-Specific)
Categories: Radio Access NetworkCore NetworkRoaming and Interconnect
Threat Intelligence in context
The radio access network is the layer where mobile devices attach to the operator's infrastructure. Attacks in this layer include IMSI catching, rogue base stations, downgrade attacks and jamming, and defenses hinge on mutual authentication, integrity-protected signaling and Open RAN supply-chain hygiene.
The mobile core is where subscriber sessions, mobility and policy live. In 4G it is the EPC (MME, HSS, S/PGW); in 5G it is the Service-Based Architecture with AMF, SMF, UPF, AUSF, UDM and the NRF. Core exposure is the difference between a single-subscriber leak and a fleet-wide breach.
To place Threat Intelligence in the wider telecom-security picture, review Red Team, AUSF, Grey Routing, GSMA, Inter-PLMN Security and Location Tracking Attacks.
Related terms
Related topic hubs
- Roaming Security IPX/GRX interconnect risk, home-routed vs local-breakout, SEPP.
- Routing Area Update GPRS/UMTS RAU procedure and attack surface.
- Telecom Fraud IRSF, Wangiri, SIM box, PBX hacking and CLI spoofing.
- Telecom Security Audit Structured MNO/MVNO security audit methodology.
More from the TelcoSec Glossary
Browse the full TelcoSec Glossary, the Ultimate Guide to Mobile Network Security, or the P1 Arsenal of telecom-security tools.