Our community offers you security challenges to learn and practice hacking.
Our goal is to provide fun and unique challenges running in a real world environment, with no guessing and no simulation!
Our challenges address several subsets of hacking, mostly oriented on the offensive. A multitude of technologies and architectures are waiting for you. Show us your mad skillz and pop some shells (or calcs)!
To solve a challenge you have to find a flag
, which is a secret that you can only read after exploiting a vulnerability. Flags may be stored in files, in a database, etc. They are usually surrounded by a W3C{flag here}
tag so you can hardly miss them!
Levels are progressive and will (hopefully) meet the expectations from both beginners and experienced hackers and CTF players. Note that this is a challenge site, not a tutorial! We won't hold your hand, but if you made your research and got really stuck along the way, we'll gladly help!
You can ask for help:
The challenges remain online forever, so please refrain from publishing solutions on the Internet! We have special afterwards
forums where you can discuss solutions with other solvers.
No Denial of Service on our infrastructure, please.