SECURE
// Cybersecurity — Belgium

The threat
is real. So are we.

Organisations face a growing wave of targeted attacks, ransomware, and silent intrusions that go undetected for months. MTSN exists to change that. Bringing specialist-level security to businesses that deserve more than a checkbox solution.

Belgium · mtsn.be
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About MTSN

Built by someone
who has been there.

MTSN is a Belgian cybersecurity firm founded on a simple premise: the organisations that need security the most are often the ones with the least access to it. Large enterprises have entire security teams. Everyone else gets a firewall and a prayer.

We are a small company, and we work with a select number of customers. This allows us to ensure adaptability and provide services tailored to your business.

We bring the same level of expertise. Hands-on incident response, real threat intelligence, deep technical knowledge, to companies that have never had it before. Without the enterprise overhead, without the helpdesk, without the noise.

When something goes wrong, you reach a person who knows what they are looking at. That is not a given in this industry. At MTSN, it is the baseline.

Years of hands-on security experience
10+yr
Average time attackers go undetected
200days
Of cyberattacks target small and medium-sized businesses
43%
Belgian businesses experienced a cyberattack in the past year
1in2
What we do

The field
we operate in.

Cybersecurity is not a product you buy once. It is a continuous discipline. Detecting threats before they become incidents, responding when they do, and building the resilience to recover when the unexpected happens. This is the field we work in every day.
01
Threat Detection & Monitoring
Adversaries do not announce themselves. They move quietly, establish footholds, and wait. Continuous monitoring exists to find them before they are ready. Detecting anomalous behaviour, suspicious activity, and early-stage intrusion across your environment.
02
Incident Response
When a security incident occurs, the first hours are critical. The decisions made in that window determine whether you contain the damage or watch it spread. Effective incident response requires technical depth, clear communication, and the ability to operate under pressure.
03
Attack Surface Management
Most organisations do not have a clear picture of what they expose to the internet. Subdomains, services, credentials, certificates. Attack surface management builds and maintains that picture continuously, so nothing is discovered by an attacker first.
04
Offensive Security
Understanding how attackers think and operate is not optional, it is foundational. Penetration testing and red team exercises reveal what your defences miss, before a real adversary finds it. Knowing your weaknesses is the first step to eliminating them.
05
Security Awareness
Technology alone does not stop breaches. The majority of successful attacks begin with a human. A clicked link, a shared credential, a trusted voice on the phone. Building a security-aware organisation is a force multiplier for every technical control you deploy.
06
Digital Forensics
After an incident, the question is always the same: what happened, and how far did it go? Digital forensics reconstructs the attacker's path. From initial access to final action; giving you the complete picture needed to remediate, report, and prevent recurrence.
// Our approach

Security is not a product you install. It is a discipline you practice.

01
Transparancy
We tell you what we find, not what is comfortable. No sugar-coating risk.
02
Technical
Real expertise, real depth. Not a reseller. Not a generalist. A specialist.
03
Direct
No account managers, no tiers of support. You reach the person doing the work.
04
Discreet
Security work requires trust. Everything stays confidential. Always.
// Get in touch

Let's talk
security.

No sales pitch. No obligation. If you have a question about your security posture, an incident you are dealing with, or just want to understand your risk, reach out.

Email
info@mtsn.be
→
Website
mtsn.be
→
BE1027.608.496
→