As a victim: obtain your credit reports from the major credit bureaus?
Let the police know if there was any suspicious transaction on your account activities.
As the victim of ID Theft you can place a “Fraud Alert” on your credit report. A temporary alert (90 days) can be placed until a copy of the report is obtained (7 years).
File a complaint with the Internet Fraud Complaint Center
Watch a video on Identity Theft Prevention
Identity Theft Information from Maryland Attorney General