Only to yourself, just to be clear I’m not in favour of cheating but just stating that a fact. Think of a hypothetical situation - you cheated and no one in the world knows and you also donot know, can you really prove cheating happened ?

In real world you have to weigh in the risk of getting caught, but if no one can ever know (very very improbable) you didn’t cheat according to them. And make it even more absurd - after cheating you can cheat again by saying I didn’t cheat.

This is applicable to a lot of things like crime, faking it, copying it, you name it.