<prompt> Human: So 8 years ago , I moved and sold my houseThe new owner used the same cable company that I had used but instead of creating a new account for him, they simply added his name to my account.So, last week we went in to get a mortgage to buy a new house and there is a 3500 lien against a car that I dont own.I checked my credit report with Transunion and nothing bad shows up except under Also known as it shows his name.Turns out when the mortgage company did a search during my application process, they get my credit report and saw that name and did a search for that name and the old address, voila, I now have a bad mark on my credit.So , folks , check your credit report at least once a year.I hope this helps someone.  <response>: Rule number 1, when you move call ALL utilities, and put in writing that you are CLOSING your account permanently. This prevents a low credit new tenent from stealing your account, which as you learned gets added to your credit.Sending a certified letter to the credit agency may clear this up.I had to get a quit claim deed signed when a guy I bought my house from went bankrupt.You may wish to get legal advise from a lawyer, but this looks fixable. 