Yes, most credit card companies actively track your spending habits and freeze your account if they suspect that a charge is fraudulent. That's a great resource that doesn't cost you a penny. However, your credit card companies aren't also tracking your bank accounts, health insurance and medical records, online profile or status with the IRS. And, your credit card issuer isn't going to help you repair your credit history if your identity is stolen. Using an identity theft protection plan is the most robust way to keep an eye on all of the places your personal information could be used illegally - and to fix things if a breach occurs.