Gsma Fs.38 Jun 2026

FS.38 defines the structure of the Profile Package (the collection of files, applications, and keys that make up a SIM). Because of this standard, a Mobile Network Operator (MNO) can build a profile using tools from one vendor (e.g., Giesecke+Devrient) and successfully download and install that profile onto an eUICC chip manufactured by a completely different vendor (e.g., Thales or IDEMIA). This decoupling is the engine of the eSIM economy.

The world of telecommunications is rapidly evolving, and the advent of 5G technology is transforming the way we live, work, and interact with one another. As the industry continues to navigate the complexities of 5G deployment, standards and guidelines play a crucial role in ensuring seamless and efficient network operations. One such key standard is GSMA FS.38, a comprehensive framework that outlines the requirements for 5G network slicing. gsma fs.38

FS.38 is formally titled IoT Security Guidelines for Service Providers and Device Manufacturers . Its primary innovation lies in moving away from generic best practices toward a concrete architecture defined by discrete security domains. The document structures IoT security around three logical layers: the device, the network, and the application/service platform. The world of telecommunications is rapidly evolving, and

: For details on how different network elements interact securely, refer to the GSMA Interworking Security page. Key Objectives and Scope

GSMA is a Permanent Reference Document (PRD) titled "SIP Network Security" . It provides a comprehensive framework for securing Session Initiation Protocol (SIP) across fixed, mobile, and converged networks. Key Objectives and Scope