Call the credit bureaus to put a fraud alert on your credit file. A fraud alert will show up on your credit report notifying potential creditors that you may be or have been a victim of identity theft. A fraud alert lasts for 1 year and can be extended. Call the fraud departments at Experian 1-888-397-3742, Equifax 1-800-525-6285 and TransUnion 1-800-680-7289. You can also place a fraud alert online.