KPI (Key Performance Indicator)

A Key Performance Indicator is a quantitative measure used to track progress against a defined objective. In telecom they cover network performance (call setup success rate, drop rate, latency, throughput), service quality, fraud (e.g. high-cost destination spike), and security (signalling firewall hits, authentication failure rate). KPIs feed dashboards and SLA reporting.

Categories: Security ControlsFraudOperations and Business

KPI in context

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

Telecom fraud costs operators an estimated $40+ billion per year. Common vectors include IRSF, Wangiri callback scams, SIM box bypass, PBX hacking and A2P grey routing.

To place KPI in the wider telecom-security picture, review GSMA Open Gateway, NOC, Slice Security, Control Plane Security, OTT Bypass and Flash Call: each entry cross-references back to this page so you can walk the topic in either direction.

Related terms

Related topic hubs

  • SS7 Firewall GSMA FS.11 category 1/2/3 SS7 message screening at the STP edge.
  • Diameter Security 4G/LTE Diameter threats across IPX/roaming and DEA defenses.
  • Diameter Firewall GSMA FS.19 screening at the Diameter Edge Agent on S6a/S9/S13.
  • GTP Firewall GSMA FS.20 GTP-C/GTP-U screening on GRX/IPX borders.

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.