Independent telecom security auditor

Telecom security auditing that's independent. No vendor conflicts.

We audit signaling, 5G core, RAN and SIM with our own methodology. No ties to vendors or operators: objective reports and a remediation plan prioritized by risk.

20+networks audited
40+years of combined experience
6European countries
EQA certified organisation ISO 27001, certificate no. 12717-INFISO 27001Certified information security
Speakers at Black Hat · DEF CON · RootedCON · EKOparty Official training at Black Hat USA Responsible disclosure to GSMA and 3GPP ISO 27001 · Certified information security Speakers at Black Hat · DEF CON · RootedCON · EKOparty Official training at Black Hat USA Responsible disclosure to GSMA and 3GPP ISO 27001 · Certified information security
How we audit

We attack your network the way an adversary would, before they do.

We simulate real attacks on SS7/Diameter, 5G core, RAN, orchestration and APIs. At the end you get findings prioritized by risk, a remediation plan and a session to review it with your technical team.

What we audit→
5G Core5G NTNRANIMSOSSNFVNOCSIM/OTA
01

Tailored scope

We define with you which technologies and assets are in scope.

02

Real attack

On SS7/Diameter, 5G core, RAN, orchestration and APIs, remote or on-site.

03

Prioritized findings

Every vulnerability, ranked by the risk it poses to your network.

04

Remediation and review

A remediation plan and a session to review it with your technical team.

Why Ethon Shield?

What sets us apart

Ethon Shield talk at a security conference
Speakers at Black Hat · DEF CON · RootedCON · EKOparty

Independence and neutrality

No ties to vendors or operators. We don't sell products, so the report doesn't depend on any catalog.

Telco specialization

Telecommunications only, in depth: SS7, Diameter, 5G core, RAN, IMS, OSS, SIM/OTA.

Experience in large networks

Over 40 years of combined experience auditing major operators in Spain, Italy, Poland, the United Kingdom, Norway and Sweden.

In-house research

What we research becomes methodology. We present it at Black Hat, DEF CON and RootedCON.

How to choose

Three ways to audit a telco network

Each model meets a different need. Here's what each one brings.

 Independent auditorlike Ethon ShieldVendorGeneralist cybersecurity consultancy
FocusTelecom network securityIts own technology and solutionsIT and business security across sectors
Relationship with your network's suppliersNone: it sells no products or remediationIt is one of themDepends on its partnerships
Typical technical scopeSignaling, 5G core, RAN, SIM/OTA, OSSThe elements it suppliesIT infrastructure, cloud and processes
Best fit when…You need an assessment of the whole network with no ties to any supplierYou want to validate or harden its specific technologyYou want a broad view of corporate security
Common questions

Frequently asked questions

What is an SS7 / Diameter security audit?
An assessment of your network's signaling to detect call interception, fraud and subscriber tracking before an attacker does.
How is an independent auditor different from a vendor?
We don't sell products or signaling firewalls, so the report isn't shaped by a catalog of our own: we only look for the real vulnerabilities in your network.
Which countries do you work in?
We have audited networks in Spain, Italy, Poland, the United Kingdom, Norway and Sweden. We work remotely and on-site.
Do you audit remotely or on-site?
Both, adapting to each client's infrastructure and access restrictions.
What do you deliver at the end of an audit?
A report with findings prioritized by risk and an actionable remediation plan, plus a session to review it with your technical team.
AI-generated image

Let's talk about your network

Tell us which technologies you use and what concerns you. We'll propose a tailored scope.