# CTF

* [TryHackMe](https://tryhackme.com/)
* [HackTheBox](https://www.hackthebox.com/)
* [RingZer0](https://ringzer0ctf.com/home)
* [Hackthissite](https://www.hackthissite.org/)
* [CTFlearn](https://ctflearn.com/)
* [Wargames](https://underthewire.tech/wargames)
* [Crackmes](https://crackmes.one/)
* [Cryptohack](https://cryptohack.org/)
* [echoCTF](https://echoctf.red/)
* [Hacker101](https://www.hacker101.com/)
* [OverTheWire](https://overthewire.org/wargames/)
* [PentesterLab](https://pentesterlab.com/)
* [SANS Holiday Hack Challenge](https://holidayhackchallenge.com/)
* [VulnHub](https://www.vulnhub.com/)
* [flaws.cloud](http://flaws.cloud/)
* [AWS CloudGoat](https://github.com/RhinoSecurityLabs/cloudgoat)
* [AWS CloudGoat2](https://rhinosecuritylabs.com/aws/introducing-cloudgoat-2/)
* [OWASP Juice Shop](https://owasp.org/www-project-juice-shop/)
* [Kubernetes Goat](https://github.com/madhuakula/kubernetes-goat)
* [CI/CD Goat](https://github.com/cider-security-research/cicd-goat)
* [bWAAP](http://www.itsecgames.com/)
* [WebGoat](https://github.com/WebGoat/WebGoat)
* [Google CTF](https://www.elastic.co/training/free)
* [XSS Game](https://xss-game.appspot.com/)
* [pwn.college](https://pwn.college/)
* [Defend the Web](https://defendtheweb.net/?hackthis)

CTF Events

* <https://ctftime.org/>
* <https://www.reddit.com/r/securityCTF/>