Online Application Security Training Labs

Learn how to hack vulnerable web applications across multiple technology stacks. Level up your security testing skills. Practice for leading certification exams including GIAC and CREST.

Real World Labs

4ARMED has been delivering application security testing training to penetration testers and developers around the world for over a decade.

During this time we've created an ever-growing library of labs and Capture The Flags (CTF) based on real vulnerabilities found in penetration testing engagements and bug bounty programmes.

Now you can access these labs as part of a new gamified online learning experience.

Learn by Doing

Master the art of web application security testing through practical, hands-on exploitation of our online labs. No hosting required, everything is in our cloud. Compete against other hackers in public or private leaderboards.

Launch a Lab

Fire up your own dedicated instance of a vulnerable web application in our cloud.

Capture the Flags

Find the flags by exploiting the real world vulnerabilities.

Gain XP, Level up

Correct flags gain you XP (experience points) which unlocks more labs. See if you can top our leaderboard.

For You. For Your Business.

For Individuals

Create an account, hack the labs and try to level up.

For Businesses

Got a team of security testers or developers you'd like to train on our labs?

With a business account you can assign learning paths and track the progress of your team members.

Why 4ARMED Labs?

Some of the features of our service are listed here. We have an aggressive roadmap too. There are lots of things coming down the road and we're excited for you to be part of the journey.

Train for popular certifications

Studying for GWAPT or CCT-APP? We have tracks with labs that map to the syllabus.

Fortnightly Releases

We aim to release at least one new lab every two weeks but the quality of our labs is important. We'd rather release less often and make sure there's no filler.

Support Available

We have community support available via our Discord server or upgrade to Pro and get direct support from our team.