Challenge more challenge toooo..........!!

1. https://m.blog.naver.com/PostView.nhn?blogId=koromoon&logNo=220788399483&proxyReferer=https%3A%2F%2Fwww.google.com%2F

2. https://www.amanhardikar.com/mindmaps/Practice.html

3. https://dev.to/sottlmarek/hackitect-series-vol-3-building-ctf-for-developers-5eha

4. http://l-team.org/archives/re0-start-from-zero.html

5. https://thehacktoday.com/100-hacking-sites-legally-practice-infosec-skills/ 

6. hackcenter.com