Lawful Intercept (Lawful Interception)

Lawful Intercept in context

The radio access network is where mobile devices attach to the operator's infrastructure. Attacks in this layer include IMSI catching, rogue base stations and downgrade attacks; defenses rest on mutual authentication, integrity-protected signaling and Open RAN supply-chain hygiene.

Signaling protocols carry the control-plane messages that set up calls, register subscribers and route SMS. SS7, Diameter, GTP-C and SIP are the four dominant families, and interconnect exposure of any of them is treated by GSMA as top-tier telecom risk.

To place Lawful Intercept in the wider telecom-security picture, review Lawful Interception Abuse Risk, Lawful Interception Architecture, Revenue Assurance, Telecom Penetration Testing, Chain of Custody and O-RAN Interfaces (A1, E2, O1, O2) — each entry cross-references back to this page so you can walk the topic in either direction.

Related terms

• Lawful Interception Abuse Risk
• Lawful Interception Architecture
• Revenue Assurance
• Telecom Penetration Testing
• Chain of Custody
• O-RAN Interfaces (A1, E2, O1, O2)
• Bidding-Down Attack
• P-CSCF Discovery

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.