You cannot legally obtain someone else's Social Security number without their permission

A Social Security number is not public information. The Social Security Administration does not publish them, does not confirm them over the phone to strangers, and does not allow third parties to search for them. If you have found a website claiming to reveal someone's SSN for a fee, that site is either running a scam or selling information obtained illegally.

The only legitimate ways to get someone's Social Security number are: they give it to you directly, they provide it on a document you have access to (like a tax return or loan application), or you are a government agency or employer with legal authority to request it. Everything else — background check sites, data brokers, social engineering, or hacking — either violates federal law or involves information obtained through violations.

If you need someone's SSN for a legitimate reason, the direct approach is the only legal one: ask them for it. If you cannot ask them, you probably do not have a legitimate reason to have it.

Key Takeaways

  • Social Security numbers are protected by federal law and are not available through public records, government databases, or commercial lookup services.
  • Websites offering to reveal someone's SSN are either scams designed to steal your money or selling illegally obtained data.
  • If you need someone's Social Security number for employment, lending, or legal purposes, you must request it directly from that person.
  • Attempting to obtain someone's SSN without permission can violate the Identity Theft Enforcement and Restitution Act and result in criminal charges.
  • If you suspect someone has stolen your own SSN, you can place a fraud alert with the three major credit bureaus or freeze your credit.

Why Social Security numbers are not searchable

The Social Security Administration keeps SSN records confidential by law. They do not sell lists, do not confirm numbers to callers, and do not allow bulk searches. Federal law — specifically the Privacy Act and the Identity Theft Enforcement and Restitution Act — makes it illegal to obtain someone's SSN through deception, hacking, or unauthorized access to records.

Background check companies and data brokers do hold some Social Security numbers, but only those people have voluntarily provided to them (usually through credit applications, loan paperwork, or employment forms). These companies cannot search by name to find an SSN. They can only verify an SSN if you already have it and want to confirm it belongs to a specific person.

Even if you find an SSN listed somewhere online — in a leaked database, a public record that was mistakenly posted, or a data breach — using it without the person's permission is illegal. Possessing someone else's SSN with intent to use it fraudulently is identity theft.

What websites claiming to reveal SSNs are actually doing

Sites that advertise "find anyone's Social Security number" or "SSN lookup" fall into two categories: scams that take your money and disappear, or data brokers selling information obtained through data breaches or other illegal means.

The scam version typically asks you to pay a fee, enter the target person's name and basic details, and promises results within hours. You pay, receive nothing or a fake number, and have no recourse. Your payment information is now in the hands of criminals who may use it for further fraud.

The second type operates in a legal gray area. They may have obtained SSNs through a data breach, purchased them from someone who did, or scraped them from public records that were posted online by mistake. Buying or using such information puts you at legal risk, even if the broker claims the data is "public" or "legally obtained." The original source of the data matters.

Legitimate reasons you might need someone's SSN

If you are an employer, lender, landlord, or government agency, you have the legal right to request an SSN from someone. You ask them directly, they provide it, and you verify it through proper channels. This is standard practice for hiring, credit checks, background investigations, and tax reporting.

If you are a family member trying to help an elderly relative with finances or medical decisions, you may need their SSN to access accounts or file documents. In this case, ask them directly or check their personal records (birth certificate, insurance documents, tax returns) if you have access to them.

If you suspect fraud or identity theft involving someone else's SSN, you do not need to find their number yourself. Contact the Social Security Administration's fraud hotline, the Federal Trade Commission, or local law enforcement with the information you do have. They have the tools and authority to investigate.

What to do if you think someone has your Social Security number

If you have been notified of a data breach, received a credit card offer in your name, or suspect someone is using your SSN, act quickly. Contact the three major credit bureaus — Equifax, Experian, and TransUnion — and place a fraud alert on your credit file. This tells lenders to verify your identity before opening new accounts in your name.

You can also request a credit freeze, which locks your credit file entirely so no one can open accounts without your permission. A freeze is stronger than an alert but requires you to unfreeze temporarily if you want to apply for credit yourself. Both are free and can be done online or by phone.

File a report with the Federal Trade Commission at IdentityTheft.gov. This creates an official record and gives you a recovery plan. If someone has already opened accounts or committed fraud in your name, you will need this report to dispute charges and remove fraudulent accounts from your credit history.

Check your credit reports from all three bureaus (free annually at AnnualCreditReport.com) for accounts you did not open. Dispute any fraudulent accounts in writing with the credit bureau and the creditor.

How to protect your own Social Security number

Treat your SSN like a password. Do not carry your Social Security card in your wallet. Do not write it on checks or give it out over the phone unless you initiated the call and you are certain you are speaking to a legitimate organization.

Shred documents containing your SSN before throwing them away. Be cautious about who you give it to — your doctor's office, your employer, and your bank need it, but many other organizations do not. If someone asks for it, ask why they need it and whether they can use a different identifier instead.

Use strong, unique passwords on financial and email accounts. Enable two-factor authentication wherever it is available. Monitor your credit reports regularly. These steps will not prevent someone from stealing your SSN, but they make it much harder for a thief to actually use it.

Frequently Asked Questions

Can I find someone's Social Security number through a background check website?

No. Background check sites can verify an SSN if you already have it, but they cannot search by name to find one. If a site claims it can, it is a scam. Legitimate background check companies only reveal information like criminal history, employment history, and address — not Social Security numbers.

What if I need someone's SSN for a legal reason like a lawsuit or custody case?

Request it directly from the person or their attorney. If they refuse, your lawyer can file a motion to compel discovery, which is the legal process for obtaining information needed for a case. A court can order someone to provide their SSN if it is relevant to the case.

Is it illegal to have someone else's Social Security number if I found it by accident?

Simply having the number is not illegal. Using it, sharing it, or attempting to use it for any purpose is. If you found an SSN in a document or online, the safest action is to delete it and not use it for anything. If it was in a public place where it should not have been, you can report it to the organization responsible for that record.

Can I look up my own Social Security number if I lost it?

Yes. Contact the Social Security Administration directly at 1-800-772-1213 or visit your local Social Security office. Bring a photo ID and proof of citizenship or legal residency. They can confirm your number and issue you a replacement card. You can also view your number through your my Social Security account online at ssa.gov.

What should I do if someone is using my Social Security number?

Place a fraud alert with Equifax, Experian, and TransUnion immediately. File a report at IdentityTheft.gov. Check your credit reports for accounts you did not open and dispute them in writing. Consider a credit freeze to prevent new accounts from being opened. If the fraud involves tax returns or employment, contact the IRS and the Social Security Administration as well.