IT security courses?

Question

Information Security

Good afternoon! I would like to become more savvy in the field of security. Therefore, the question arose whether there are any courses (paid / free) or books where they can describe in detailed examples many types of attacks on sites (in a lower priority - servers), as well as examples of protection against each given attack. At prices, preferably more acceptable, but for general development, any possible, but useful courses are possible. Such as SQL injection, XSS, CSRF, brute force, data interception and more. This is already part of hacking, if I understand correctly, but when working on a serious project, I want to minimize the chance of any problems with the site.

Answer 1

https://t.me/freedomf0x