What to read about IB?

Question

Information Security

Hello.
There are such interesting comrades who are engaged in information security.
To read this, to understand them better?
And at the moment I have a feeling that they are paranoid.
But apparently I'm wrong. And I just don't have enough knowledge.
Is there an online course?
I've only found a book on hacking so far. And cryptography.
But it seems to me that this is only a very small part of the problem.
Thank you.

Answer 1

1. How to start learning about information security?
   
2. How to start studying information security?
   
3. What are the resources for studying the field of "information security"?
   
4. Fundamental literature on information security in Russian?
   
5. Information Security Books and Resources
   
6. What should an information security specialist study?
   
7. What do you need to know to become a hacker?
   
8. ...
   
9. How to find all the above links?