<prompt> Human: Short story: My sister stole my fathers SSN and forged his signature on a 30,000 auto loan without his permission and knowledge back in June. My mother was suspicious that my sister might have done this. Sure enough, I check his credit report for him just minutes ago and she actually had the audacity to do this. Is there any course of action he can take to have his name taken off the loan?  <response>: Im sorry that this happens to you guys.Also investigate a credit freeze for all of you. This would mean that to check your credit score, any potential credit provider would need to get your personal permission. I believe its often a code or a password, so as long as you can keep that away from your sister, youre safe. 