Learning Resources

SANS Institute: sans.org
Offensive Security: offensive-security.com
Virtual Hacking Labs: virtualhackinglabs.com
Pentester Academy: pentesteracademy.com
Pentester Lab: pentesterlab.com
Practical Pentest Labs: practicalpentestlabs.com

Bugcrowd University: bugcrowd.com/university/
HackerOne: hacker101.com
SANS Pentesting Blog: pen-testing.sans.org/blog/
HackingTutorials: HackingTutorials.org
Web Security Academy: portswigger.net/web-security
OWASP: owasp.org
Hack The Box: HackTheBox.eu
Try Hack Me: TryHackMe.com
Over The Wire CTF: overthewire.org/wargames/
Under The Wire CTF: underthewire.tech/index.htm