The title of the article is "why you didn’t notice your teammate was cheating"

Then you have the answer here:

> Cheats have escaped the host PC

> [...]

> Colorbots are quite hard to detect. You can essentially just plug in a capture card to your PC and pass the images to another PC that the cheat runs on.

If the article is low effort I would say that your comment is not great either because you seems frustrated to not have more information and just blame the author for not writing more about the subject.