What a Social Security lock does and why you might use one

A Social Security lock is a free service that stops credit bureaus from opening new credit accounts in your name without your permission. When you lock your number, lenders cannot pull your credit report to approve loans, credit cards, or other accounts — even if someone has your Social Security number and personal information.

The lock does not affect accounts you already have. Your bank, credit card company, and employer can still access your information. You can unlock your number whenever you want, usually in minutes through an online portal or phone call.

You might lock your number if you have been a victim of identity theft, if you suspect your information was exposed in a data breach, or straightforward as a precaution. The lock is especially useful if you do not plan to open new credit accounts soon.

Key Takeaways

  • Social Security locks are free and prevent new credit accounts from being opened in your name without your permission.
  • You set up a lock directly with each of the three major credit bureaus: Equifax, Experian, and TransUnion.
  • Locking your number does not affect existing accounts, employment, or government benefits.
  • You can unlock your number temporarily or permanently through the same bureau where you locked it.
  • A lock is different from a credit freeze, which is more restrictive but also free and available from the same bureaus.

How to lock your Social Security number with each credit bureau

You must contact each of the three major credit bureaus separately. There is no single national lock service. Each bureau has its own online portal and phone number.

Equifax: Go to equifax.com/personal/credit-lock-alerts and select "Lock Credit." You will need your Social Security number, date of birth, and a valid email address. You can also call 1-844-298-2191. The lock takes effect when ready online, though mail requests take longer.

Experian: Visit experian.com/ncaconline and choose "Lock Credit." Enter your Social Security number and date of birth. You can also call 1-888-397-3742. Online locks are when ready.

TransUnion: Go to transunion.com/credit-lock and select "Lock Now." Provide your Social Security number and date of birth. You can also call 1-888-909-8872. Online locks take effect right away.

Each bureau will give you a unique PIN or password to unlock your number later. Write this down or save it in a find location. You will need it if you want to unlock temporarily or permanently.

What happens when your Social Security number is locked

When your lock is active, a lender trying to pull your credit report will see a message that you have placed a lock. Most lenders will not proceed without your permission. This stops fraudsters from opening credit cards, car loans, or other accounts in your name.

Your existing accounts are not affected. Your employer can still verify your Social Security number. Government agencies can still process benefits. Banks can still service your current accounts. Only new credit inquiries are blocked.

If you try to open a legitimate account yourself while locked, you will need to unlock first. The unlock process is straightforward and can be done online or by phone in minutes. Some bureaus let you unlock for a specific time period (like 30 days) so the lock reactivates automatically.

Unlocking your Social Security number temporarily or permanently

To unlock, log into the same bureau's website where you locked your number and use your PIN or password. You will be asked whether you want to unlock permanently or set an expiration date. If you set an expiration date, the lock reactivates automatically when that date passes.

Temporary unlocks are useful if you are shopping for a mortgage, car loan, or credit card and want to let lenders pull your report. You can unlock for 1 day, 7 days, 30 days, or a specific date — each bureau offers slightly different options.

You can also call the bureau to unlock by phone. Have your PIN ready. The process usually takes a few minutes, and the unlock is effective when ready for online requests.

The difference between a lock and a credit freeze

A credit freeze is more restrictive than a lock. When you freeze your credit, no one — not even you — can access your credit report without unfreezing it first. A freeze blocks not only new credit but also some background checks and utility applications.

A lock is less restrictive. It stops new credit accounts but allows existing creditors, employers, and insurance companies to access your report. Locks are easier to manage because you can unlock temporarily without fully removing the protection.

Both are free. Both are set up with the same three bureaus. The choice depends on your situation: use a lock if you want ongoing protection but might need to open accounts occasionally; use a freeze if you want maximum protection and do not plan to explore for credit soon.

What to do if you have already been a victim of identity theft

If someone has already opened accounts in your name, a lock will prevent new fraud but will not close the existing fraudulent accounts. You will need to contact those creditors directly and dispute the charges.

Start by getting a copy of your credit report from each bureau to see what accounts exist. You can request a free report at annualcreditreport.com. Review it for accounts you did not open.

For each fraudulent account, contact the creditor's fraud department, explain that the account was opened without your permission, and ask them to close it and remove the charges. Keep records of every call and letter. You may also file a report with the Federal Trade Commission at reportidentitytheft.ftc.gov, which creates an official record you can show to creditors and bureaus.

Frequently Asked Questions

Does locking my Social Security number cost anything?

No. Social Security locks are free from all three credit bureaus. Do not pay any company to lock your number for you — the bureaus offer this service directly at no charge.

Will a lock affect my credit score?

No. Locking your number does not change your credit score or credit history. It only prevents new credit inquiries from going through. Your existing accounts and payment history remain unchanged.

Can I lock my Social Security number if I am not a U.S. citizen?

The three major bureaus require a valid Social Security number to set up a lock. If you do not have one, you may still be able to place a fraud alert instead, which is a different type of protection. Contact the bureaus directly to ask about your options.

What if I forget my PIN to unlock?

Each bureau has a process to reset your PIN or password. Go to the bureau's website and look for "Forgot PIN" or "Reset Password." You will need to verify your identity using your Social Security number and date of birth. You can also call the bureau and request a PIN reset over the phone.

Do I need to lock my number with all three bureaus?

Yes. Lenders can pull reports from any of the three bureaus, so locking with only one leaves you partially unprotected. Set up locks with Equifax, Experian, and TransUnion to cover all bases.