You are lucky that the hack was unsuccessful, It is just the beginning of the new year, and that will not be a good way to start it. Since you already have this as a concern that maybe it was a breach in casino/sportsbook where you added details of your bank, why don't you just consider completely switching to crypto casinos and only using cryptocurrency to fund your account. I am personally always very careful where I put any of my bank information because you never know.