alert(1) to win

Attack-Defense Online Lab

Google CTF

One-line shell challenges, to help improve your skill on the commandline.

Capture the Flag - Application Security Challenge

This is a game designed to challenge your application hacking skills. There are several challenges t...

Exploit Education :: Andrew Griffiths' Exploit Education

navigation exploit.education provides a variety of resources that can be used to learn about vulnera...

An Interactive Cyber Security Platform | Defend the Web

Defend the Web is an interactive security platform where you can learn and challenge your skills. Tr...

Hacker101 CTF

The Hacker101 CTF is a game designed to let you learn to hack in a safe, rewarding environment. Hack...

Pick a Vulnerability to Learn About

The best protection against being hacked is well-informed developers. Make your development team int...

Hacking Training For The Best

From beginners to experts, this is where hackers level up! Join today and learn how to hack.

Hacking-Lab

Cybersecurity Training To Face Evolving Threats - Immersive Labs

Cybersecurity training from Immersive Labs empowers organizations to increase, measure, and demonstr...

PracticalPentestLabs | Take Your Hacking and Penetration testing Skills to The Next Level.

With a wide range of vulnerable-by-design hosts that are constantly updated to keep your skills curr...

PentesterLab: Learn Web Penetration Testing: The Right Way

Get started and check out our free exercises, or unlock access to over 400+ exercises and counting w...

Newbie Contest - Challenges informatiques francophones

Le plus important site de challenges de securité informatique francophone disponible ! Venez tester...

Early hacker catches the bug [Toddler's Bottle] fd collision bof flag passcode random input leg mist...

PENETRATION TESTING PRACTICE LAB - VULNERABLE APPS / SYSTEMS

For printing instruction, please refer the main mind maps page. Available Formats: Image and URLs Im...

Penetration test lab "Test lab" | Pentestit

Penetration testing laboratories "Test lab" emulate an IT infrastructure of real companies and creat...

picoCTF - CMU Cybersecurity Competition

picoCTF is a free computer security education program with original content built on a capture-the-f...

Bienvenue [Root Me : plateforme d'apprentissage dédiée au Hacking et à la Sécurité de l'Information]

Root Me est une plateforme permettant à chacun de tester et d'améliorer ses connaissances dans le do...

The 2021 SANS Holiday Hack Challenge

The Cryptopals Crypto Challenges

We can't introduce these any better than Maciej Ceglowski did, so read that blog post first. We've b...

TryHackMe | Cyber Security Training

TryHackMe is a free online platform for learning cyber security, using hands-on exercises and labs,...

Vulnerable By Design ~ VulnHub

VulnHub provides materials allowing anyone to gain practical hands-on experience with digital securi...

Welcome – W3Challs Hacking Challenges

Hacking Challenges: binary pwnables, web hacking, reverse engineering, crypto & forensics. No simula...

[WeChall] About WeChall

Overview of hacking challenge and problem solving sites. - wechall