How to Lock Your Social Security Number with the SSA
"Locking" Your SSN Means Closing Four Different Doors
People search for one button that locks a Social Security number, but no such master switch exists. Your SSN is used across separate systems — the Social Security Administration's own records, the E-Verify employment-check system, the IRS tax-filing system, and the credit bureaus — and each has its own lock. The good news is that every lock is free and government-run. Closing all four is the closest thing to truly locking down your number.
Start with the Social Security Administration itself. The SSA lets you place a block on electronic and automated-telephone access to your record, so that no one — including you — can view or change your information online or by phone until you lift it. This is the SSA's strongest self-service protection and is aimed squarely at identity-theft and domestic-violence situations. You set it up by calling the SSA, not through the website, which is itself a safeguard.
The second door is employment fraud, where someone uses your SSN to get hired. The Department of Homeland Security's E-Verify system offers a free feature called Self Lock that places a lock on your SSN inside E-Verify, so that if a thief's employer runs your number, the case returns a mismatch instead of a confirmation. You stay in control and can unlock it whenever a legitimate new employer needs to verify you.
How to lock your SSN: the four locks
Block electronic access at the SSA — Call the SSA at 1-800-772-1213 (TTY 1-800-325-0778) and ask to block electronic and automated phone access to your record. Once blocked, your my Social Security account and the automated phone system are sealed until you call back, prove your identity, and remove the block. See ssa.gov/hlp/block-access.htm for details.
Self Lock your SSN in E-Verify — Create a free myE-Verify account at e-verify.gov and turn on Self Lock. The lock stays active as long as your account is valid; unlock it yourself when you change jobs so a real employer can confirm you.
Get an IRS Identity Protection PIN — Request a six-digit IP PIN at irs.gov. Once enrolled, the IRS will reject any tax return filed under your SSN that lacks the PIN — shutting down tax-refund fraud. The PIN is valid for one calendar year and renews automatically through your IRS online account.
Freeze your credit at the bureaus — A credit freeze blocks new-account fraud, the most common SSN misuse. It is free and separate from everything above; see the dedicated walkthrough below.
What to expect
Each lock targets a different threat, so the order does not matter — what matters is doing all four, because a thief blocked at one door will try the others. The SSA block and the IRS IP PIN are the two most people skip, and they are exactly the gaps that let identity theft surface as a fraudulent benefits change or a bogus tax refund.
Keep your recovery details safe. Blocking SSA access means you cannot use the online portal until you call to unblock; losing access to your IRS account complicates retrieving a forgotten IP PIN; and the E-Verify Self Lock must be lifted before each new job. None of these locks affect benefits you already receive or your credit score — they only stop unauthorized new use of your number. Treat them as a set, review them once a year, and you have done the practical equivalent of locking your SSN.
Related opt-out resources
- How to Freeze Your Credit at All Three Bureaus for Free — the fourth lock, in full detail
- How to Opt Out of Spokeo, WhitePages, and BeenVerified — remove the SSN-adjacent data brokers expose
- IRS: Get an Identity Protection PIN — official federal guidance
References
- U.S. Social Security Administration. "Block Electronic Access." SSA.gov, https://www.ssa.gov/hlp/block-access.htm. Retrieved 2026-06-07.
- U.S. Department of Homeland Security, E-Verify. "Self Lock." E-Verify.gov, https://www.e-verify.gov/employees/employee-self-services/mye-verify/self-lock. Retrieved 2026-06-07.
- U.S. Internal Revenue Service. "Get an Identity Protection PIN (IP PIN)." IRS.gov, https://www.irs.gov/identity-theft-fraud-scams/get-an-identity-protection-pin. Retrieved 2026-06-07.