Programming

• https://binarysearch.com
• https://hackerone.com
• https://www.w3schools.com
• https://Hackerrank.com

Practical

• https://PortSwigger.net/
• https://HackTheBox.eu/
• https://TryHackMe.com/
• https://play.picoctf.org/
• https://ine.com/

Privilege Escalation

• Windows Privilege Escalation Fundamentals
• Basic Linux Privilege Escalation

Reverse engineering

• Binary Exploitation / Memory Corruption by LiveOverflow
• https://microcorruption.com/

Learning from Youtube

• Youtubers

Algorithms

• https://www.reddit.com/r/learnprogramming/
• Algorithms and Data Structures Tutorial

Amazing notes+scripts from jephk9

• https://github.com/jephk9/oscp-jewels

Recommended Certs

• eJPT-certification
• OSCP-certification

CTFs

• https://ctftime.org/

Books

• Hacking: The Art Of Exploitation
• Black Hat Python
• The Hacker Playbook 2

Attractions

• https://gtfobins.github.io/
• Bypassing SSRF Protection
• Exploit database
• Education GitHub
• Wikipedia from null-byte