Posted May 19, 2020

Example, if you download a program online that seems to you a harmless program to copy files (while in reality it is an "evil program" for removing the drm) and you don't know, nobody can accuse you of anything and your copy without drm it is legitimate.
Let's stay with your example of the "evil program".
Have you ever heard of the old adage: "ignorance is no excuse"?
Let's (wrongly?) assume, that such a program would remove the copy protection without your knowledge (= without you clicking some boxes, choosing some options, etc.)...the fact that you simply don't know what the program does, wouldn't magically make your copy a legal copy.
The removal of the copy protection makes the copy automatically illegal - your knowledge (or your alleged lack of knowledge) about that removal, would simply make the difference between an intentially and an "unintentionally" created illegal copy.
And if it ever came to a trial, you probably would have to prove that you really weren't aware of what the program does.
But illegal stays illegal - the second case ("I wasn't aware of that...!") is simply where that old adage comes into play: "ignorance is no excuse (in front of a judge!)"
Of course - the probability for you ever to get held legally responsible for that illegal copy, is near zero (for as long as you don't "go public" with it).
Because that's where another old adage gets relevant: "Where there's no plaintiff, there's no judge!"
So - make your illegal copy - but keep it for yourself only.
And don't keep it after you sell the original.
Because that's also part of the law (and the part that most people are all too willing to "forget" about) - you are not allowed to keep copies of your games/movies/CDs, etc., if you ever sell the original...oh, and btw: that also counts for truly legal copies.