What a thief can do with your Social Security number

A person with your Social Security number can open credit accounts in your name, take out loans, file a false tax return to steal your refund, get a job using your number, or rent an apartment or phone line. They can also use it to obtain a driver's license, apply for government benefits, or commit crimes while using your identity. The damage spreads because your number is the master key to your financial and legal identity — it connects to your credit history, employment record, tax file, and benefit accounts.

The harm is not theoretical. Identity theft using a Social Security number typically takes months or years to fully discover and repair. During that time, you may be denied credit, face wage garnishment for debts you did not incur, or learn about criminal charges filed under your name. The longer the theft goes undetected, the more accounts and records become entangled.

Key Takeaways

  • A thief can open credit cards, take out loans, file tax returns, and get jobs using only your Social Security number.
  • You should check your credit report at least once a year and watch for accounts you do not recognize.
  • If you discover theft, place a fraud alert with the three credit bureaus and consider a credit freeze to block new accounts.
  • The Social Security Administration does not call you unsolicited — if someone claims to be SSA and threatens arrest, it is a scam.
  • You cannot change your Social Security number easily, but you can limit who has access to it by refusing to give it out when alternatives exist.

How thieves obtain Social Security numbers

Thieves get Social Security numbers through data breaches at companies that store them, by stealing mail or documents from your home, by posing as employers or government agencies over the phone, or by purchasing stolen numbers on the dark web. Large-scale breaches at hospitals, retailers, and government agencies have exposed millions of numbers at once. Smaller thefts happen when someone goes through your trash, intercepts mail, or tricks you into revealing it during a phone call.

Phishing emails and text messages are common too. A message may claim to be from your bank, the IRS, or Social Security and ask you to "verify" your number or click a link. Legitimate government agencies do not ask for your Social Security number by email or text. If you receive such a message, do not respond — contact the agency directly using a phone number or website you know is real.

Signs that your Social Security number has been misused

Check your credit report for accounts you did not open, inquiries from creditors you never contacted, or a sudden drop in your credit score. You can view your credit report free once per year at annualcreditreport.com — this is the only official site for free reports. Look for credit cards, car loans, personal loans, or cell phone accounts listed under your name.

Other warning signs include bills or collection notices for debts you do not recognize, a notice from the IRS saying you owe taxes or that someone filed a return using your number, or a letter from an employer you never worked for. You may also receive a notice that your Social Security number is being used by someone else, though this is rare. If you see any of these signs, act quickly — the sooner you report it, the easier it is to limit the damage.

What to do if your Social Security number has been stolen

First, place a fraud alert with the three credit bureaus: Equifax, Experian, and TransUnion. You only need to call one bureau, and they are required to notify the other two. A fraud alert tells creditors to verify your identity before opening new accounts. You can place an alert by phone or online at any bureau's website. The initial alert lasts one year and is free.

Second, consider a credit freeze, which blocks all creditors from viewing your credit report unless you unfreeze it. A freeze is stronger than an alert because it stops new accounts from being opened at all. You must place a freeze with each of the three bureaus separately. Freezes are free and last until you remove them. Some states allow you to freeze your credit for free even if you have not been a victim of theft.

Third, check your credit reports carefully and dispute any accounts or charges you did not make. Contact the creditor directly and in writing to report the fraud. The credit bureau must investigate your dispute within 30 days. Fourth, file a report with the Federal Trade Commission at identitytheft.gov. This creates an official record and gives you a recovery plan. If a criminal used your number to get a job, file a report with the Social Security Administration as well.

Protecting your Social Security number going forward

Do not carry your Social Security card in your wallet. Keep it in a safe place at home, like a locked drawer or safe. Do not give your number to anyone unless you initiated the contact and know the organization is legitimate. Many businesses ask for your Social Security number out of habit, not necessity — you can often refuse and ask if an alternative identifier will work instead.

When you must provide your number, ask how it will be stored and who will have access to it. Shred documents that contain your number before throwing them away. Use a cross-cut shredder if possible, as strip shredders can be reassembled. Monitor your credit report regularly — set a reminder to check one bureau's report every four months by rotating through the three bureaus, or check all three at once once per year.

Be suspicious of unsolicited calls, emails, or texts asking for your Social Security number. The Social Security Administration does not call people to threaten arrest or demand payment. If someone claims to be from SSA and threatens you, hang up and call the real Social Security Administration at 1-800-772-1213 to report the scam.

Whether you can change your Social Security number

The Social Security Administration rarely issues a new number, and only in specific circumstances. You must show that someone is actively using your number to commit fraud, that you face ongoing harassment or abuse, or that your religious or cultural beliefs prevent you from using the current number. Simply being worried about theft is not enough. If you do meet the criteria, you must apply in person at your local Social Security office with proof of citizenship, age, and identity.

A new number does not erase your old one from records — creditors and employers may still have it on file. You will also need to update your new number with your employer, bank, and any creditors. For most people, a fraud alert and credit freeze are more practical and effective than trying to change the number itself.

Frequently Asked Questions

Can someone open a bank account with just my Social Security number?

Most banks require more than just your Social Security number — they also want a photo ID and proof of address. However, some online banks or credit unions may have weaker verification, and a thief with your number plus a fake ID or stolen documents can open accounts. This is why monitoring your credit report and bank statements matters.

What if I gave my Social Security number to a scammer?

Place a fraud alert immediately by calling one of the three credit bureaus. Consider a credit freeze as well. Monitor your credit report and bank statements closely over the next several months. You may not see fraudulent activity right away — some thieves wait weeks or months before using stolen numbers. Report the scam to the Federal Trade Commission at identitytheft.gov.

Will my credit score recover after identity theft?

Yes, but it takes time. Once you dispute fraudulent accounts and they are removed from your credit report, your score will improve. The process usually takes several months to a year, depending on how much damage was done and how quickly the fraud was caught. Paying your own bills on time during this period helps your score recover faster.

Is it safe to give my Social Security number to my employer?

Yes — employers need your Social Security number for tax withholding and wage reporting. However, ask how they store it and who has access. Your employer should keep it secure and separate from other personnel files. If you work for a large organization, the number is usually stored in a restricted payroll system.

What should I do if I lost my Social Security card?

Report it to the Social Security Administration by calling 1-800-772-1213 or visiting your local office. You can request a replacement card. Also place a fraud alert with the credit bureaus as a precaution, since someone who finds your card has your number. You do not need to change your number unless you have evidence it is being misused.