For Beginners
Beginners can start to know about cybersecurity by watching a bunch of videos from different channels on youtube. This playlist by Simplilearn should be good for you. Similarly we have a playlist by Edureka for the same.
If you are very new to this field, you must understand that you absolutely need to know and work on Linux to excel at Cybersec. This file has a curated list of linux commands which you will need while learning linux shell.
There are great resources available on Tryhackme and Hackerone. These websites not only provide resources for learning ethical hacking and bug bounty testing, they also help in practicing them. These are great places to start with.
This Netacad series for cybersecurity training by Cisco is great free content for beginners.
Here are some playlists of live events which you would like to watch-
This file should be helpful for people in intermediate stage.
You can get courses for learning more on StationX and Hacker101. If you find courses on Coursera and other platforms which are paid, you can look up for them on torrent. That will help you learn a lot. If you dont know how to use Torrent, set up a VPN and visit PirateBay or 1337x.to for finding courses, movies and stuff for free.