From Battlefield to Cyberfield: Train Like the World’s Elite

Developed from real-world NATO cyberwarfare experience, CDeX delivers elite training to secure your digital frontlines.

From NATO to your desk

Less than 20%

companies say they are confident they are ready to fight off a cyberattack.

Over 66%

of cybersecurity experts in the EU lack formal qualification or training.

Almost 50%

of all organisations worldwide will be affected by cybercriminal activity in some way just this year.

European Parliament building exterior with its iconic glass facade and EU flag

CDeX is the solution.
 
Our platform is built to help you proactively defend against real-world cyber threats. Based on our years of experience helping organisations such as NATO and the EU, we created a one-of-a-kind solution to train cybersecurity experts. 
 
Whether you operate in defence, critical infrastructure, BFSI, or civil government, CDeX is designed to help. 

Build by experts, for experts

CDeX is a Cyber Defence Exercise Platform, that was originally founded in 2016 as a project within Vector Synergy. Since then, it has grown to become the most advanced cybersecurity training platform, offering various trainings and allowing cybersecurity professionals to build cyber defence competencies and acquire skills in live cyberwarfare conditions.

Based on MITRE ATT&CK®, CDeX mirrors real-world attack scenarios that happen every day.

Simulates realistic cyber warfare conditions in a safe,
controlled environment.

Supports security assessments, skill development, and R&D.

With CDeX, you’re not just training—you’re preparing to outsmart attackers before they strike.

CDeX training scenarios

SWB

Windows Backdooring

SLFSA

Linux, FTP, and SSH Attacks

InfraStrike Challenge

New incarnation of Blue vs Red Team real-time competition

OSB

Banking industry-dedicated scenario

SWADA Advanced

SWADA scenario for advanced engineers

SCADA

Supervisory Control and Data Acquisition Attacks

What Makes CDeX Unique?

Real Threats

Scenarios based on real-world adversary attacks.

Real Skills

Practical training of skills you might need as soon as tomorrow.

Real Results

Enhanced response times, improved collaboration, and measurable ROI.

5 Pillars of Cybersecurity

5

Tools (Firewalls, EDR, IDS/IPS, etc.)

4

System Architecture (Secure network design, segmentation, zero trust)

3

Procedures (Incident response plans, security protocols)

2

Processes (Continuous monitoring, compliance frameworks)

1

Human Readiness (Cyber training, real-world simulations, decision-making under pressure)

Why choose CDeX?

Hardware, firewalls, and automated defences are essential. But your security is only as strong as its weakest link. And the weakest link is always human readiness. 
 
CDeX is built to strengthen the human element in your security stack. Train like you fight. Fight like you train. 

Your cybersecurity isn’t complete until your team is battle-ready

Benefits of CDeX

For Cybersecurity Experts

Learn by doing, not watching

Access 200+ real-world scenarios based on actual cyberattack techniques. Hands-on training, not just theory. See how you perform under pressure.

Get ready for real threats

Get familiar with the latest tactics used by adversaries and practice scenarios designed to reflect real threats you might face.

Easily upskill

Pinpoint strengths and close skill gaps thanks to detailed performance metrics and personalised recommendations for follow-up training.

Train anywhere, anytime

Engage in micro-trainings or full-day sessions. Access CDeX from any device, whether you're at your desk
or working remotely.  Fight alone or as a part of a team.

For Leaders & Executives

Improve cyber readiness

Train and test your organisation's performance in coordinated, multi-role scenarios build specifically for your industry.

Quantify ROI

Gain measurable insights into your team’s preparedness with
post-scenario reports and receive targeted training sessions to address any weaknesses.

Save costs

Upskilling your team is more cost-effective than finding new talent. With our platform, you eliminate the need for any additional software licences or infrastructure costs.

Install & use how you like

Choose between cloud-based or
on-premise training solutions and benefit from fully automated configuration, coordination and management of the platform.

Learn where you stand—and where you can grow—with CDeX

Trusted by cybersecurity
professionals worldwide

CDeX, a platform that combines the solutions pioneering with knowledge of the most versatile ways of cyber-attack, overcomes the learning’s traditional barriers through a multitude of available solutions by offering to teachers and students the ability to learn, practice and to excel into an outstanding learning and collaborative engaging environment.

Florin Postolache

Academia Navala "Mircea cel Batran" Constanta

Modern warfare encompasses more than conventional weaponry. It involves a clash of technologies, processes, and competencies. This is why training the next generation of cybersecurity professionals is of immense importance. In this context, the role of the cyber range becomes pivotal, where 'red' and 'blue' teams compete in virtual attack and defence scenarios, meticulously working through diverse real-world situations.

Valeriy Tsiupa

President of the International Cyber Academy

CDeX opens up new possibilities in teaching methods and significantly reduces the preparation time of laboratories for groups of students with different levels of advancement in cybersecurity.

Prof. Maciej Sułowicz

Cracow University of Technology

The CDeX platform is easily one of the most complete and user-friendly full network simulation platform.

Victor Seiji Hariki

Cybersecurity Specialist, KRYPTUS

Thanks to the CDeX platform, our national Cyber Security exercises have become more engaging and convenient.

Deividas Stumbras

Acting Director of National Cyber Security Centre, The Republic of Lithuania

How does the CDeX cyber range work?

Our focus on realism and adaptability is what sets CDeX apart.

Each of the trainings is based on real-world challenges that you can actually encounter in the span of your career.

Every scenario is modelled on the MITRE ATT&CK® framework, the global standard for mapping adversary tactics. You won’t just study cyber threats; you’ll face them head-on in a controlled environment.  

This way you can be sure your trainings will prepare you for real, not theoretical, threats.

What scenarios can you choose from?

You get to choose from over 200 ready-to-use scenarios, divided into:

Blue vs. Red Scenarios

A training in which two teams compete against each other

Automated Scenarios

Pre-configured challenges that simulate dynamic cyberattacks

Capture the Flag (CTF) Scenarios

Gamified trainings that offer an interactive puzzle-solving experience

You can also choose to use our drag-and-drop scenario builder to create trainings that fit your specific needs.

Every exercise ends with a mission debrief, giving you detailed performance analytics to pinpoint weaknesses. Our expert-led follow-up training ensures you come back stronger—more skilled, more prepared, and mission-ready.

Cosmic Problem: what to expect from a training scenario?

Cosmic Problem is one of our Blue vs. Red scenarios. It starts when the training systems fall under attack by the red team in real time.

Multiple hacking techniques are used by the malicious party with one goal in mind: to disrupt the confidentiality, integrity, and availability of your systems, services, and data.

Your mission is to analyse the traffic captured during the cyberattack, analyse the logs, and answer 3 main questions:

How did the attacker gain access to the network?

What did they do once they gained access?

What channel did they use to extract data from internal networks?

The training scenario allows you to learn how to recognise most of the top 10 OWASP attacks on servers and web applications.

Newest industry-specific trainings

Cyber threats evolve, and so does CDeX. On top of our 200+ core training simulations, we also offer industry-specific scenarios for sectors facing high risk of cyberattacks.

See the newest trainings added to our library:

Maritime Attack Scenario

developed with Shipadvisors and Antwerp Maritime Academy.

Renewable Energy Systems Attack Scenario

based on real wind farm attacks.

Think you're ready to fend off a cyberattack?