This year someone was “kind” enough to file both a state and federal return on H and my behalf. Ugh. I think I have it all sorted out - this year I have to file paper returns (usually do anyway) with form 14039 (Identity Theft Affadavit) attached. That form requires a photocopy of a drivers license or passport to be attached.
I found out about the fraudulent returns when I received a state refund check in the mail despite having not filed yet.
When I was sorting this out with a state revenue agent (CT), she said that on that particular day she had spent all day dealing with cases such as mine. Between my case, and her comments, and news stories I’ve seen, it seems like this is a big issue this year.
I’m surprised that OP had to answer the questions cold. When I was presented with credit-bureau questions (they referred to these as “out of wallet” questions) they always gave me 4 choices, ie, choose a, b, c, or d.