I've used all the tools mentioned in the article and they generally will find most anything present, even if the user is computer savvy. Two major reasons: a) a

I've used all the tools mentioned in the article and they generally will find most anything present, even if the user is computer savvy. Two major reasons: a) artifacts and b) carelessness. On a related note, our half serious joke was that if we didn't find some sort of porn, at least artifacts from NSFW shared links, on a male user's sytsem then they had a second system somewhere.