Exfiltration

Exfiltration 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 Exfiltration in the wider telecom-security picture, review Malware, UDR, Egress, Event Logging, Insider Threat and Robocalling: each entry cross-references back to this page so you can walk the topic in either direction.

Related terms

• Malware
• UDR
• Egress
• Event Logging
• Insider Threat
• Robocalling
• Wangiri Fraud
• Artificial Traffic Inflation

Related topic hubs

• Diameter Attacks S6a IDR/PUR/CLR abuse, subscriber tracking, LTE signaling attacks.
• Diameter Security 4G/LTE Diameter threats across IPX/roaming and DEA defenses.
• LTE Security Training Training on 4G/LTE core, Diameter, NAS and RRC security.
• Tracking Area Update LTE TAU procedure and its signaling risks.

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.