How are anti-cheats hacked and bypassed?

Question

Information Security

Steam VAC, Easy Anticheat, how are they bypassed?
I constantly see and I myself came across on streams playing with cheats.
Where can I find out and where to dig how to break them, bypass them?

A little about
Cheat engine

Answer 1

In the most primitive case,
Cheat - modifies the game's memory
Anti-cheat - makes sure that the game's memory is not changed
Anti-cheat bypass - modifies the anti-cheat or pretends that the memory has not been changed (in the right places)
but so, you need to study in detail how they work and based on this already think how to deceive them