What video courses exist on encrypting executable files?

Question

IT education

What courses can you recommend to protect the application? Whether it is a commercial program that does not want to be hacked by a malicious "cracker" or a virus that wants to hide from antiviruses. Or writing a separate cryptor.
I'm not asking you to give me a ready-made answer on a silver platter. I want to get a theoretical basis for further development.
Thanks in advance for your reply

Answer 1

Lol, the answer to your question has been studied at universities in the areas of "Information Security" for about five years, and thousands of highly paid specialists are racking their brains over it.

Answer 2

Institute Course Information Security