All kind of web based challenges but only around half are actually related to exploiting vulnerabilities. The other half is used to check whether you have the ability to think logical.. what's a hacker with no common sense? :p
finished challenges: 0/17
The think challenges are all kinds of challenges, most are steganography and some have to do with encryption.
finished challenges: 0/11
Again, not really challenges, it's just a matter of completing enough challenges in order to complete these.
finished challenges: 0/9
The miscellaneous hacking challenges, zip password cracking, social engineering, esoteric program languages and more.
finished challenges: 0/5
Challenges hidden from the human eye, you'll have to find hidden passages in order to reach these challenges.
finished challenges: 0/3
Get the pass, like it says, get the damn pass. The challenges are suitable for n00bs and more advanced web hackers, also some passes have one or more encryptions.
finished challenges: 0/3
Cracking, decompiling, reverse engineering, if you're a cracker, this is your kind of matter.
finished challenges: 0/5
Real life website vulnerabilty scenarios, break out of the forum's layout and try to break into the websites, again the challenges in this category range from easy to pretty hard.. you may also find some hidden challenges if you are sharp enough.
finished challenges: 0/5
Most of the challenges in this section are time based hacking challenges, can you manage to solve the challenges in time?
finished challenges: 0/11
My personal favorite category, hack 'n slash your way through 3 completely insecure sites and gain complete control over them using your web techniques.
finished challenges: 0/13
Who needs a provider when you can get internet access for free?
finished challenges: 0/1