Recently I have seen a whole lot of questions in the form of "How secure is this hashing", "How secure is my keygen?", "How secure is my form?".

We do have a quite popular security tag, with 159 questions as of this moment.

Now I am starting to wonder:

At which point should questions be asked on Information Security rather than here? What is the difference between Code Review and Information Security when it comes to... well... security-questions?