What happened is that you managed to hit on one of my pet peeves, which is laws that prohibit innocuous things just because sometimes bad people do them. Like the DMCA prohibition on circumventing technical measures that control access to a copyrighted work. I really hate laws like that because they criminalize legitimate conduct (like circumventing for the purposes of fair use criticism) and have no benefit whatsoever over just applying the same penalties to the real bad act (e.g. copyright infringement that isn't fair use), all they do is expand the scope of criminality beyond the actually undesirable act so that it ensnares otherwise upstanding and innocent people. This is especially bad when the penalties are calibrated for the worst possible intent in doing the thing, e.g. mass scale for-profit infringement, and then applied with that severity to everyone in violation of proportionality.
The CFAA is the same way. It prohibits unauthorized access, which seems like it would generally be bad (though it's vague enough that who knows) and with no provision for looking into the circumstances to evaluate how bad, then goes on to impose penalties as though the unauthorized access was in furtherance of something like terrorism or bank fraud rather than accessing a wifi to check your email, even though the latter is still covered and subject to the same extreme penalties.
And none of this is about black and white, which is why I objected to the example. Wanting black and white laws is about fighting vagueness: Too much specificity is bad because it's too complicated and no one can understand it (see: tax code), but too much vagueness is also bad -- even worse -- because then you have no possible way to know what it actually means until you get told by a judge, by which point it's far too late.
The problem with your example is that it isn't an example of too much vagueness, it's an example of too much breadth. Take two examples: "Don't do things" and "don't do bad things without a good reason." The first isn't really vague at all -- it just covers everything, which is useless and stupid. So the problem is that it's too broad. The second isn't too broad -- it's pretty good at only criminalizing things that ought to be -- but it's hopelessly vague.
And it's overbreadth which is the trouble with "it is illegal to break locks." It covers breaking locks even for good reasons. So you need a list of exclusions or you end up like the DMCA: You're allowed to break them if they're your locks, or if necessary in order to do something legitimate, etc. Which is actually a counterexample of being okay with relatively simple laws and not needing a list of caveats to go along with them. Because we can't make things that simple, or we get the DMCA and the CFAA, which are both terrible and need to be seriously overhauled.
The CFAA is the same way. It prohibits unauthorized access, which seems like it would generally be bad (though it's vague enough that who knows) and with no provision for looking into the circumstances to evaluate how bad, then goes on to impose penalties as though the unauthorized access was in furtherance of something like terrorism or bank fraud rather than accessing a wifi to check your email, even though the latter is still covered and subject to the same extreme penalties.
And none of this is about black and white, which is why I objected to the example. Wanting black and white laws is about fighting vagueness: Too much specificity is bad because it's too complicated and no one can understand it (see: tax code), but too much vagueness is also bad -- even worse -- because then you have no possible way to know what it actually means until you get told by a judge, by which point it's far too late.
The problem with your example is that it isn't an example of too much vagueness, it's an example of too much breadth. Take two examples: "Don't do things" and "don't do bad things without a good reason." The first isn't really vague at all -- it just covers everything, which is useless and stupid. So the problem is that it's too broad. The second isn't too broad -- it's pretty good at only criminalizing things that ought to be -- but it's hopelessly vague.
And it's overbreadth which is the trouble with "it is illegal to break locks." It covers breaking locks even for good reasons. So you need a list of exclusions or you end up like the DMCA: You're allowed to break them if they're your locks, or if necessary in order to do something legitimate, etc. Which is actually a counterexample of being okay with relatively simple laws and not needing a list of caveats to go along with them. Because we can't make things that simple, or we get the DMCA and the CFAA, which are both terrible and need to be seriously overhauled.