Capture The Flag (CTF) competitions are a fantastic way for cybersecurity enthusiasts to test and hone their skills. These events challenge participants to solve security-related tasks in various domains, including cryptography, reverse engineering, web security, and more. Here's a roundup of some of the best CTF competition websites you should check out:
1. DEFCON CTF
Website: legitbs.net
DEFCON is one of the most renowned hacking conferences in the world, and its CTF competition is considered one of the most prestigious. Organized by the team Legitimate Business Syndicate, it attracts top talent from around the globe, making it a must-participate event for serious competitors.
2. CSAW CTF
Website: csaw.io/ctf
The Cyber Security Awareness Week (CSAW) CTF is hosted by NYU Tandon School of Engineering. It's one of the largest student-run cybersecurity events and offers challenges for various skill levels, from beginners to advanced hackers.
3. hack.lu CTF
Website: hack.lu
Held during the hack.lu conference in Luxembourg, this CTF features a variety of challenges that test participants on a wide range of cybersecurity topics. It’s known for its high-quality, innovative problems.
4. PlaidCTF
Website: plaidctf.com
Organized by the Plaid Parliament of Pwning, a top CTF team, PlaidCTF is an annual competition that attracts a global audience. The challenges are known for being well-crafted and educational.
5. RuCTFE
Website: ructfe.org
RuCTFE (Russian Capture The Flag with Evolving Rules) is a prominent online CTF competition hosted by the Ural Federal University. It’s particularly noted for its unique evolving rules format, which adds an extra layer of complexity.
6. Ghost in the Shellcode
Website: ghostintheshellcode.com
Although no longer active, Ghost in the Shellcode was a popular CTF that featured innovative and challenging problems. The legacy of its high-quality tasks continues to inspire many current competitions.
7. PHDays CTF
Website: phdays.com
Positive Hack Days (PHDays) CTF is a part of the PHDays conference held in Moscow. It features a variety of interesting and challenging problems that attract participants from all over the world.
8. Secuinside CTF
Website: (No current website)
Secuinside is a well-regarded CTF competition held in South Korea. It’s known for its challenging problems and professional organization.
9. Codegate CTF
Website: (Currently not available)
Codegate is another notable CTF competition that has been highly regarded in the cybersecurity community. Although the official site isn’t available at the moment, the competition has left a lasting impact.
10. Boston Key Party CTF
Website: bostonkeyparty.net
Boston Key Party is a CTF competition organized by the BU Security Club. It features high-quality challenges that attract both students and professionals from around the world.
11. ZeroDays CTF
Website: zerodays.ie
ZeroDays CTF is an Irish-based competition that offers a range of interesting and unique challenges. It’s a great platform for both beginners and experienced hackers.
12. Insomni'hack CTF
Website: insomnihack.ch
Held in Switzerland, Insomni'hack is a well-known cybersecurity conference with a highly regarded CTF competition. The challenges are diverse and cater to various skill levels.
13. picoCTF
Website: picoctf.com
picoCTF is a free, online cybersecurity competition aimed at middle and high school students. It’s designed to be accessible and educational, making it a great starting point for newcomers to the field.
14. prompt(1) to win - XSS Challenge
Website: prompt.ml/0
This unique CTF focuses on Cross-Site Scripting (XSS) challenges. It’s a fantastic resource for anyone looking to improve their web security skills.
15. Hack The Box
Website: hackthebox.com
Hack The Box offers a wide range of virtual labs and challenges that cover all aspects of cybersecurity. It’s an excellent platform for continuous learning and practice.
16. NetWars
Website: sans.org/cyber-ranges
Organized by SANS, NetWars is a series of interactive learning environments that provide a hands-on approach to mastering cybersecurity skills. It’s known for its high-quality content and professional organization.
17. Cyber Security Challenge UK
Website: cybersecuritychallenge.org.uk
This initiative aims to identify and nurture the next generation of cybersecurity talent in the UK. It includes various challenges and competitions that are suitable for all skill levels.
18. US Cyber Challenge
Website: uscyberchallenge.org
The US Cyber Challenge seeks to identify and develop cybersecurity talent through a series of competitions and training camps. It’s a fantastic opportunity for aspiring cybersecurity professionals.
19. vicno automotive-ctf
Website: vicone.com/automotive-ctf
Vicno Automotive CTF focuses on automotive cybersecurity challenges. It’s an excellent platform for those interested in the security aspects of automotive technologies.
CTFtime
Website: ctftime.org
CTFtime is the central hub for the CTF community. It provides a comprehensive calendar of upcoming CTF events, rankings for teams and individuals, and detailed write-ups of past challenges. Whether you're looking to participate in a CTF or simply follow the competition scene, CTFtime is an essential resource for staying informed and engaged with the global CTF community.
Conclusion
Participating in CTF competitions is a great way to improve your cybersecurity skills, network with like-minded individuals, and gain recognition in the cybersecurity community. Whether you're a beginner or an experienced professional, these CTF competitions offer something for everyone. Happy hacking!
Credits
This list was compiled with the help of resources from GitHub and Security Stack Exchange.
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