Robocalling

Robocalling is automated outbound calling at scale, used legitimately for notifications and reminders, and abusively for spam, fraud, and scams that often combine spoofed caller-ID. STIR/SHAKEN attestation and analytics-driven call-blocking by carriers are the dominant defences in the US; many other markets are following with similar regulatory mandates.

Categories: Identity and SubscriberThreats and AttacksFraud

Robocalling in context

Subscriber identifiers (IMSI, SUPI, MSISDN, IMEI) anchor authentication, charging and lawful interception. Any protocol that leaks a permanent identifier is treated as a privacy defect, which is why 5G introduced SUCI concealment on the air interface.

Telecom threats range from opportunistic SMS phishing and SIM swap to nation-state grade location tracking. The common thread is that most attacks exploit the inherited trust model of legacy signaling protocols.

To place Robocalling in the wider telecom-security picture, review Artificial Traffic Inflation, Cell Phone (Mobile Phone), CGNAT, CLI Spoofing, CPE and Event Logging — each entry cross-references back to this page so you can walk the topic in either direction.

Related terms

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.