About us
We're building the platform we wished we had.
When we were learning security, we kept wishing for the same things: lessons we could interact with, practice that feels like the job and a real way to see who is better. Nobody had built them in one place, so we did.
Our wishlist
What we wanted when we were learning security.
- Lessons we could interact with, not just readInteractive lessons
- A voice walking us through it, not walls of textNarrated lessons
- Each lesson taught its own way, not one fixed system113 lesson formats
- A reason to learn each skill, not just the next chapterJob scenarios
- Practice that feels like the real jobClient missions
- Ranked battles to see who's really better1v1 & 2v2 Arena
Our mission
Make job-ready security skills open to anyone willing to put in the work.
Security keeps needing more people, yet most who try to break in hit the same wall. The theory is everywhere, but nothing bridges watching someone hack and being trusted to do it for a client.
Sudo is that bridge. Interactive lessons explain the idea, job scenarios give you a reason to use it, client missions at a simulated security firm end with a real report, and ranked Arena battles prove you can do it.
- career paths
- 31
- career paths
- modules
- 267
- modules
- labs and CTFs
- 88
- labs and CTFs
$ whoami. learner. theory: plenty · client work: none. $ sudo --elevate learner. [sudo] checking: ethics module ... passed. granted: interactive lessons, the idea, understood. granted: job scenarios, a reason to use it. granted: client missions, scope, findings, report. granted: arena rank, proven against others. role updated: learner to junior analyst. # use your new privileges responsibly.
sudo is how you ask a system for elevated privileges. We give you yours.
What we believe
Four beliefs behind every lesson.
The difference
Not just another hacking platform.
Most platforms give you pages to read and boxes to hack. Here is what changes on Sudo Arena.
How you learn
Long written pages, then a question to answer
Interactive lessons you click through, try and watch unfold
How each lesson is taught
One fixed format for every topic
A format built for each lesson, 113 in all
Why you learn it
It's the next chapter in the syllabus
A client ticket needs that skill right now
What practice looks like
Solo boxes and flags to capture
Client missions with a scope, a team lead and a report
How you compete
Points on a global leaderboard
Live 1v1 and 2v2 Arena battles, with ranks
Work with us
Bring Sudo to your community.
Whether you teach an audience or run a classroom, we'll set you up.
Make security content? We'll sponsor it.
We partner with people who teach, stream or post about cybersecurity. Tell us about your channel in one short form and, once you're approved, your first month is on us.
- A free month of Sudo ArenaStart learning the day you're approved.
- Sponsorship for your contentSupport for the videos and streams you make.
- A code for your communityA personal discount your audience can use.
- A dashboard to track itSee every sign-up that came from your code.
Universities & teams
Verified students pay €20 a month. Running a club, course or security team? Let's talk about group access.
Start your first lab today.
Pick a path, open the first lesson and run your first command on a lab machine in your browser. Nothing to install.