If I said:
It can be insecure since it has two possible ways of getting forged.
Then, would it be possible to ask the question like this:
Why can it be insecure?
I find it unnatural and maybe incorrect too. So I have searched if "can" can come in Wh-questions, and the answer was that it can with (What, When, and Where). I'm not totally sure if they have stated those as examples or as the only possible cases.
- Here is the link of the article.
I can think of other wordings of the question in which they will convey the same meaning of the original one:
1) Why is it possible to be insecure?
2) What is the reason behind its possibility of being insecure?
But I want to know if that exact structure is correct or not.