eUICC (Embedded Universal Integrated Circuit Card)

Also known as: Embedded UICC

The eUICC is a secure element, embedded or removable, whose profile contents can be provisioned and managed remotely over the air rather than physically swapped. Standardised by GSMA (SGP.21/22 for consumer, SGP.01/02 for M2M), it hosts one or more operator profiles and enforces profile isolation, making it the hardware root of trust for eSIM and iSIM deployments.

Categories: Identity and SubscriberProtocols and StandardsOperations and Business

eUICC 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 security is written into standards from 3GPP, GSMA, ETSI, IETF and ITU-T. Understanding which body owns which specification, and how they interlock, is essential for both design and audit work.

To place eUICC in the wider telecom-security picture, review eSIM (Embedded SIM, eUICC), RSP, SM-DP+, SECA, IP and SAS: each entry cross-references back to this page so you can walk the topic in either direction.

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