SECAM

SECAM is the methodology question "how do we actually know this network equipment is secure?" turned into a process. Rather than every operator running its own ad-hoc security audit of each vendor box, 3GPP defines the security requirements and test cases per network product class, and GSMA's companion scheme (NESAS) accredits the labs and the vendor development processes. A product is evaluated against the relevant SCAS (Security Assurance Specification) and the results are something operators across the industry can rely on.

In day-to-day terms it's the framework behind those security certifications you see referenced in vendor RFP responses and operator procurement. The value is consistency: a defined baseline of what "secure enough" means for, say, an AMF or a gNB, tested the same way regardless of who built it. It doesn't promise a box is unbreakable — no scheme does — but it raises and standardises the floor, and it gives operators evidence rather than vendor assurances.