> otherwise it's a bit hard to take it seriously. This is the wrong attitude. You should realize that you may not be able to do all possible or necessary measu

> otherwise it's a bit hard to take it seriously. This is the wrong attitude. You should realize that you may not be able to do all possible or necessary measures to protections all at once. That doesn't mean you should avoid doing some of them, and the article talks about that. So, in other words, if you didn't do step 0, let it not stop you from doing other steps.