links:

Area 6 - Hacking challanges. (54130 hits)
Blind-Dice - Internet challenge and security site. 45 challenges now up, in 9 sections. (8989 hits)
Bright Shadows Challenges - TheBlackSheep and Erik from Germany created one of the most robust Hacker Challenge sites. (4691 hits)
Cryptoanalysis Challenges - Every year tehere is the competition in cryptoanalysis. You have to break secure messages and you can win prizes. (Czech only) (2095 hits)
Dare Your Mind - Hacker-Challenge - Enter the game to entertain your mind and progress in the computer security on H-C! There are more than 100 fresh challenges for you! So, join us and dare your mind! (1725 hits)
Encryption Challenge - Encrypt the coded message given in red characters at the bottom of the index page. (3869 hits)
EscuelaHacker - In Spanish. English under construction (1045 hits)
FATE - Downloadable hacking challenge that features a cool story line and realistic hacking missions. Also 40 training/tutorials available on everything from basic unix exploits to lock picking. (9227 hits)
Hack This Site - Great site with encryption and SQL challenges. (6801 hits)
Hack This!! - A series of challenges to teach you about website security. Still in testing stages but everything works so go a head and see who you can beat!! (1419 hits)
Hacker-Challenge - Enter the game to entertain your mind and progress in the computer security on H-C! There are more than 100 fresh challenges for you! So, join us and dare your mind! Thireus. (2325 hits)
Hacker.org -- Prove your skill - Various programming challenges, as well as challenges to create bots to solve puzzles and games. Contains a ranking system. (809 hits)
hackergames.net - Lots of links to other hacking challenges! (22500 hits)
Hackits - 2 Challenges with 8 and 9 Levels, Ranking, Avatar and Scoresystem. (4288 hits)
HackQuest - a nice hack challenge for beginners and intermediates. Try your skills without getting thrown in jail. (19865 hits)
HellBoundHackers - Masses of Hacking Challenges in different Sections. JavaScript, Basic & Realistic Hacking, Cracking,Rooting (2324 hits)
IHackedThisBox.com Hacker Challenges - You will be able to participate in a series of online internet security challenges designed to test your skills in various fields of security. IHackedThisBox hacker/security challenges are always under construction, and is updated frequently (2496 hits)
intruded - Offers wargames: Shell, Webb and crypto A great site! (1350 hits)
Learn To Hack - This site consists of hacking challenges (wargames), and crypto challenges. A forum is available for hints/help. (21436 hits)
Mod-X Security Challenge - A site to test your abilities and general IT knowledge. You will have to pass a basic test before you can use the site. (1433 hits)
Pulltheplug.org - Has wargames of diffrent levels to challenge you. (2218 hits)
The CrackMe Site - It Conatins Large Volume Of CrackMes. Crackmes are the programs created by crackers to test skills of fellow crackers. (2180 hits)
Try2Hack - A basic security challange. (12642 hits)
TT0 hack challenges - Pretty new site with interesting challenges. Some are very easy but some can take days for You to break :) (3287 hits)
Uplink. High tech computer crime and industrial espionage on the Internet of 2010. - You play an Uplink Agent who makes a living by performing jobs for major corporations. Your tasks involve hacking into rival computer systems, stealing research data, sabotaging other companies, laundering money, erasing evidence, or framing innocent people. You use the money you earn to upgrade your computer systems, and to buy new software and tools. As your experience level increases you find more dangerous and profitable missions become available. You can speculate on a fully working stock market (and even influence its outcome). You can modify peoples academic or criminal records. You can divert money from bank transfers into your own accounts. You can even take part in the construction of the most deadly computer virus ever designed. (2485 hits)
Various EASY&FUN hacking challenges - Levels do not get harder, they're only different. Full list of challenge peeks is available. http://hax.tor.hu/peek/ (1095 hits)
Virtual Security - Virtual Security, the place to learn about computer security. We provide many kinds of security, logical and other related IT (Information Technology) subjects challenges. With us, you will learn step by step, how computers work, how to secure code and how to program. (1208 hits)
War Industries - Hacking challenges and some tutorials. (7431 hits)
Zero Identity - Provides simulated scenarios and vulnerabilities, to know how it functions. Zero Identity is a safe, free, and legal environment for all to enjoy. (524 hits)

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