I think that's why intent is the important part of the applicable law. If I went to your website without knowing I wasn't meant to access it, then I wouldn't be

I think that's why intent is the important part of the applicable law. If I went to your website without knowing I wasn't meant to access it, then I wouldn't be breaking the law. If however you could prove in court that my intention was to access the website without your permission than I would be breaking the law. Certainly it would be very difficult to prove my intent, and there's probably nothing about your website that would make it clear I wasn't meant to access it. But if you had a bunch of private user pages that I somehow figured out how to get to even though it's apparent that I'm not meant to have access to, then I could be prosecuted for that. I think it's a terrible grey area that this law leaves open, but alas that's how it is for now.