If you see anything you don't recognize on your credit report, someone may be using your credit information for fraudulent purposes. Notify the credit bureau at once and call any creditors that filed complaints or incorrect information. The credit bureau can attach a fraud statement to your report and let you know which creditors to notify, and a creditor can notify credit bureaus that the information is incorrect. Keep track of your efforts in writing. According to federal law, the credit bureau and any creditor that filed incorrect information must resolve the issue within 30 days.

Source:http://www.credit-factor.com