NWDAF (Network Data Analytics Function)
In telecom networks, the NWDAF is the 5G Network Function that collects data from other NFs, OAM, and external sources to produce analytics and machine-learning insights, including anomaly detection and behavior profiling. NWDAF outputs can drive policy decisions, slice optimization, and security use cases such as detecting compromised UEs.
Categories: Core Network
NWDAF in context
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 NWDAF in the wider telecom-security picture, review Network Exposure Function (NEF), UPF, MDR, NRF Poisoning, Lateral Movement (Telecom) and GSMA SCAS.
Related terms
Equipment
5G SBA control (NRF, SCP, NSSF, BSF, NWDAF)
Related topic hubs
- 5G Security 5G SBA, SEPP, SUCI, 5G-AKA, N32 and service-based interface security.
- 5G NEF Security Network Exposure Function security in the 5G core.
- 5G Penetration Testing Pentesting the 5G core, SBA, SEPP, and gNB interfaces.
- 5G Security Training Training on 5G core, SBA, N32, SUCI and radio security.
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.