Hack the Box
Link to Resource: https://www.hackthebox.com/
Description: Similarly to TryHackMe, Hack The Box is a resource for those looking to learn the basics of cybersecurity or hone what they already know. Learn hacking skills using online hacking labs, battlegrounds, or Capture The Flag activities There are free weekly labs, and both free and paid account plans are offered.
TryHackMe
Link to Resource: https://tryhackme.com/
Description: TryHackMe provides hands-on security training using gamified lessons and real-world scenarios. It is beginner-friendly and covers a wide range of topics. There are both free and paid account plans offered.
VulnHub
Link to Resource: https://www.vulnhub.com/
Description: VulnHub provides vulnerable virtual machines for learners to practice breaking into. These virtual machines are completely free to use for learning and developing skills.
WebSecurity Academy
Link to Resource: https://portswigger.net/web-security
Description: WebSecurity Academy provides free web security training. It is provided by the people who created the Burp Suite and is completely free for anyone to use.
W3Schools – Cybersecurity Tutorial
Link to Resource: https://www.w3schools.com/cybersecurity/index.php
Description: W3Schools provides entirely free readings on any cyber topic you can think of. W3Schools also provides free quizzes and other resources for learning.