When you are the defendant
Being sued on a debt created by an identity thief is common, and the case still needs a timely answer even though the debt is not yours. A default judgment can lead to garnishment or frozen accounts, and undoing one later is harder than responding now. Within the case, the creditor generally has to prove that you opened or used the account, and discovery can require production of the application, the IP address or location data, and the delivery address for the cards. An identity theft report, a police report, and evidence of where you actually lived and worked at the time are often central.
When you are the plaintiff
Federal credit reporting law allows consumers to sue credit bureaus that fail to reinvestigate disputes reasonably, and lenders that keep reporting a disputed account without a proper investigation. A claim against the lender that furnished the information generally requires that you first disputed it through the credit bureau, not only directly with the lender, so the dispute record matters. Data breach lawsuits are a different category; they are often class actions, and courts examine whether people whose data was exposed but not yet misused have suffered enough harm to sue. Claims against the thief are possible but rarely practical unless the person is identified and has assets.
Getting the record in order
Litigation turns on documents. Keep copies of every dispute letter, the bureaus' responses, credit reports from before and after, denial letters for credit or housing, and records of the time and money spent fixing the problem. We look at whether the matter is better handled through continued disputes, a lawsuit, or the defense of a pending claim, and what each would cost you. Some claims have filing deadlines tied to when you discovered the problem, so it is worth having the timeline reviewed promptly.