Gsma Fs.38 May 2026

It introduces the concept of comparing fields across different protocols (e.g., SIP vs. Diameter) to identify discrepancies that signal potential fraud or security breaches. Integration with Other GSMA Standards

By adhering to FS.38, operators can better defend against emerging "all-IP" threats, ensuring that as networks become more open and virtualized, they remain resilient against both traditional and sophisticated cyberattacks.

The document categorizes SIP-related risks into three primary domains: gsma fs.38

Specifically addresses fraud risks in 5G environments.

It describes specific technical controls to mitigate identified risks, such as packet filtering and protocol validation. It introduces the concept of comparing fields across

FS.38 provides actionable guidance for and equipment vendors:

Outlines scenarios where SIP vulnerabilities are exploited for financial gain, such as toll fraud or subscription fraud. Technical Recommendations gsma fs.38

Provides the overarching "Baseline Security Controls" for the entire mobile ecosystem.