Comment Re:not even hacking just URL typing with fixed ID (Score 1) 304
Actually it does mean you have permission to do so. It doesn't mean the owners meant to give you permission, however.
That's why you need to be a lawyer to understand this. It's possible that for a given State or Federal law that the owner's intent is what's important, not their implementation. And the intent of the defendant is also a factor.
So, if the owner intended the site to be secure, and the defendant intended to break that security, the actual security might be irrelevant.
IANAL, YMMV, talk to a lawyer in your own state for specifics.