https://creditmonitoring.target.com/

Thank you for your patience, understanding and loyalty to Target. Target is partnering with Experian® to offer one year of free credit monitoring for all guests who shopped our U.S. stores. For more details on the offer please go to: http://target.com/databreach

a few important things to know:

Be wary of calls or email scams that may appear to offer protection but are really trying to get personal information from you. Please navigate directly to websites rather than clicking on links within emails.
Guests have until April 23, 2014 to sign up to receive an activation code. Activation codes must be redeemed by April 30, 2014.
The information captured in this process will not be used for any purpose other than providing you with credit monitoring services. Please note: if you are receiving other Target communications (e.g., weekly circular, Cartwheel, Target.com deals), you will continue to receive those offers and emails.

to sign up for free credit monitoring complete the following steps:

Enter the required information.
Click Submit.
Watch for email confirmation with activation code. This will be sent in the next 1 - 5 days.
Follow the instructions within the email to set up your free credit monitoring.