You can also pick up the phone or send a letter to freeze your credit reports. Here are the details:
Equifax:
Phone: 1-800-349-9960 (automated), 1-888-298-0045 (live operator)
Mail: Equifax Security Freeze, P.O. Box 105788, Atlanta, Georgia 30348
Experian:
Phone: 1‑888‑397‑3742 (automated)
Mail: Experian Security Freeze, P.O. Box 9554, Allen, Texas 75013
TransUnion:
Phone: 1-888-909-8872 (automated)
Mail: TransUnion LLC, P.O. Box 2000, Chester, PA 19016
NCTUE:
Phone: 1-866-349-5355
Mail: NCTUE Security Freeze, P.O. Box 105561, Atlanta, GA 30348
REMINDER: You’ll receive a PIN for your credit freeze from each bureau. Keep these PINs in a safe place. You’ll use them if and when you want to unfreeze your credit report to apply for a new loan or line of credit.