Threat-Led Assessment

Threat-Led Assessment in context

Security controls in telecom span signaling firewalls (SS7/Diameter/GTP screening at the network edge), transport encryption (IPsec, TLS, PRINS), identity and access on OSS/BSS, and monitoring at both the packet and log level. Controls are audited against GSMA FS.11/FS.19/FS.20/FS.36 and, in Europe, NIS2 sectoral rules.

Telecom threats range from opportunistic SMS phishing and SIM swap to nation-state grade location tracking and lawful-interception abuse. The common thread is that most attacks exploit the inherited trust model of legacy signaling. SS7 and Diameter were designed for a closed operator community that no longer exists.

To place Threat-Led Assessment in the wider telecom-security picture, review GNSS Spoofing, Cipher Downgrade Attack, Egress, HTTP/2 Security in 5G, IVR and NTP.

Related terms

• GNSS Spoofing
• Cipher Downgrade Attack
• Egress
• HTTP/2 Security in 5G
• IVR
• NTP
• RPKI
• Slice Security

Related topic hubs

• SS7 Penetration Testing Interconnect pentest methodology for SS7 signaling.
• Diameter Attacks S6a IDR/PUR/CLR abuse, subscriber tracking, LTE signaling attacks.
• Open RAN Security O-RAN xApp/rApp, E2/A1/O1 interfaces and RIC security.
• Telecom Penetration Testing End-to-end telecom pentest across signaling, radio and core.

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.