If something can be developed then it can be reverse engineered. It's a simple as that.
I agree with the EU link above - the fact that they shelved the report because it didn't say what they wanted it to say shows how corrupt the media / EU / are. They see a pirated version as a sale lost when it's simply not the case.
It's why I like to buy of GOG - no DRM and you can see by The Witcher 3 sales, for example, that a good game, without DRM, will sell. It doesn't mean it's going to get pirated more. I will personally buy a game on merit. If it's a good, engrossing game, then I'll buy it. If I feel I'm being taken for a ride (i.e. in the old days you had to install archaic talk-back DRM, have the DVD in the drive, etc.) then I won't bother. I even detest to DLC or, as I call it, content that should have been in the game from the start. There are very rare occasions when t does make the game better but that's few and far between.
I don't know why publishers bother with DRM - they could spend the money on the Developers tweaking the game, fixing bugs, 4K textures, etc.
M.