A training platform for

CyberDefenders is a training platform focused on the defensive side of cybersecurity, aiming to provide a place for blue teams to practice, validate the skills they have, and acquire the ones they need.

Newest Course
Certified CyberDefender …

Certified CyberDefender is a vendor-neutral, hands-on cyber defense training and certification. Thi…

Newest Challenge

Scenario: A lacrosse enthusiast on the hunt for a delicious chicken sandwich Tools: Cyb…

Upcoming CTF

Nothing is scheduled at the moment. Follow us on Twitter & LinkedIn to get notified.

Security professionals from leading organizations use CyberDefenders

Less hype

We do not use jargons like 'cutting-edge', 'game-changing', and 'revolutionary'. We respect our users and trust their judgment.

More value

If we were to describe what we are trying to do in simple words, it would be 'solving defenders problems' one problem at a time, providing straightforward yet reliable solutions.

Community powered

The best projects are community-driven ones. Our users are our partners. They drive, shape, and lead vision execution.

Our users are our biggest fans.

We don't like to brag, but we don't mind letting our users do it for us. Here are a few nice things folks have said about what we do.


What is CyberDefenders?

CyberDefenders is a training platform focused on the defensive side of cybersecurity, aiming to provide a place for blue teams to practice, validate their skills, and acquire the ones they need.


What services do you offer?

We provide three primary services: a live CTF hosting platform (BlueRing), a professional training platform (BlueDemy), and a hands-on practice area (BlueYard).


What is BlueYard?

BlueYard is is a community initiative to collect archived BlueTeam challenges in one place to make it easier for security professionals to practice with quality resources and make these challenges live forever.


How to add a challenge to BlueYard?

When a live CTF ends on BlueRing, the CTF challenges are moved to BlueYard to make them accessible for the community and enrich the CyberDefense content.


What are challenges?

Challenges are blue team exercises meant to provide a way to practice CyberDefense skills. They come in different formats such as attack investigation (SIEM style), PCAP analysis, memory analysis....etc.

Each challenge has its scenario and list of questions. Answering questions correctly requires going through an investigation scenario, analyzing data, and extracting the right piece of information.


Can I add or refer challenges?

Sure, we encourage fellow defenders to create challenges, and we will publish them under their names. If you master a specific defensive skill, why not let others know about it, be it SIEM, log analysis, packet analysis, reversing, forensics, or engineering. Trust us; the community is hungry for quality resources.

If you have something in mind but do not where or how to start, please get in touch to discuss it further.


How much do you charge?

BlueYard is entirely free to play. BlueRing is free for educational institutions and non-profit organizations. Bluedemy training's fees depend on the course topic and delivery method.


I have other questions

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