Learn security
by doing.
Write it up. Level up.
A knowledge base written by its members: walkthroughs, research notes and writeups, from first steps to advanced tradecraft. Track your skills, form study teams, and practise together in CTFs when you want to.
What's inside
Writeups and walkthroughs
Markdown with terminal output blocks and syntax highlighting. Group posts into series. Writeups tied to a live event stay hidden until it ends.
Open the librarySkill dossier
A profile that shows what you can do: a skill radar, badges, rank, and everything you've published.
Study teams
Form a team with people at your level or ahead of it. Captains, co-captains and reserves; open, invite-only or closed.
Practice events
A board of upcoming CTFs. Register your team and get a private war room to claim challenges, track solves and share notes.
Invite codes
Bring people in with codes that expire, cap their uses and can be revoked. Every redemption is logged.
Terminal palette
Press Ctrl+K to navigate with cd, ls, search and join. A few commands aren't documented. Look around.
ls writeups/ --tag web --level beginnersqli-101.md idor-walkthrough.md jwt-none-alg.md csrf-basics.mdcat writeups/sqli-101.md | head -3# SQL injection, from zeroby @n0va · series: web-foundations 1/6 · 14 minwhoamioperatorrank: initiatexp: 120webcryptocat writeups/live-event/pwn-3.md[!] spoiler-locked until the event ends (02:14:09 left)
Start learning.
Then teach someone.
Sign in with Discord or GitHub, claim a handle, and your dossier starts filling in.
