Is Your Social Security Number (SSN) Leaked? How to Find Out, What Can Happen, and What to Do Next
A stolen Social Security number is one of the leading causes of identity theft, and the consequences can follow you for years. Here is what can actually happen if your SSN is compromised, how to check whether yours has been leaked, the warning signs to watch for, and the exact steps to take to protect yourself.
What Can Someone Do with Your Social Security Number?
A Social Security number is the key to your financial and personal identity in the United States. With just your SSN, a criminal can:
Open fraudulent accounts. Identity thieves can use your SSN to open credit cards, take out loans, and establish new accounts in your name. You may not discover these accounts until debt collectors start calling or your credit score drops unexpectedly.
File false tax returns. Tax-related identity theft is one of the most common forms of SSN fraud. Criminals file fraudulent tax returns using your SSN to claim your tax refund before you do. The first sign is often the IRS rejecting your legitimate return because one has already been filed under your number.
Commit employment fraud. Someone can use your SSN to get a job, which means their wages get reported to the Internal Revenue Service under your number. This can trigger unexpected tax bills, complicate your benefits eligibility, and create confusion with the Social Security Administration about your actual earnings history.
Commit medical identity theft. Criminals use stolen SSNs to receive healthcare, fill prescriptions, or file insurance claims under someone else’s identity. This leaves victims with false medical records that can complicate future care, and medical bills they never incurred.
Access existing accounts. Combined with other personal information, your SSN can help criminals bypass security questions and gain access to your bank accounts, online banking portals, and social media accounts.
Claim government benefits fraudulently. Identity thieves can use your SSN to obtain unemployment benefits, Social Security benefits, or other government assistance, which can complicate your ability to access your rightful benefits when you need them.
Victims of identity theft may face long-term consequences including severe damage to their credit scores, which affects the ability to secure loans, housing, and employment for years afterward.
Signs Your Social Security Number Has Been Stolen
These are the warning signs that your SSN may already be in use by someone else:
Unexpected mail. You receive credit card offers you did not apply for, debt collection notices for accounts you do not recognize, or bills for services you never used. Any unsolicited financial correspondence that does not match your activity is worth investigating.
Credit report surprises. Your credit report shows accounts you did not open, hard inquiries from unfamiliar lenders, or addresses where you have never lived. Monitoring your credit report regularly can help you identify any unfamiliar accounts or activity that may indicate identity theft.
Tax return problems. The IRS notifies you that more than one tax return was filed under your SSN, or your legitimate return is rejected because a fraudulent return was already filed. You may also receive a notice about wages from an employer you have never worked for.
Social Security statement discrepancies. Your Social Security statement shows earnings from employers you do not recognize, which indicates someone is working under your number.
Unfamiliar medical records or bills. You receive medical bills for procedures you never had, or your medical records contain conditions, prescriptions, or treatments that are not yours.
Suspicious phone calls or letters. You receive calls from debt collectors about debts that are not yours, or you get notices from financial institutions about accounts you did not open.
How to Check If Your SSN Has Been Leaked
Check your credit report. You are entitled to a free credit report from each of the three major credit bureaus: Equifax, Experian, and TransUnion. Review each report carefully for accounts, inquiries, or personal information you do not recognize. Make checking your credit report a regular habit rather than a one-time event.
Use identity theft monitoring services. Services like Experian IdentityWorks or similar SSN monitoring services can track your Social Security number across databases and notify you if it appears in suspicious activity, new account applications, or dark web marketplaces. These services cannot prevent identity theft, but they help you catch and respond to issues faster.
Check the Social Security Administration. Review your Social Security statement for earnings discrepancies. If someone is using your SSN for employment, it will show up as wages from employers you do not recognize.
Search dark web monitoring tools. Dark web monitoring services can check whether your SSN, email addresses, or other personal information appear on the dark web, here’s how dark web monitoring works and why it’s a vital tool for cyber protection. If your information is already circulating in criminal marketplaces, you need to act immediately.
What to Do Immediately If Your SSN Is Compromised
If you confirm or strongly suspect your SSN has been leaked, act quickly. The speed of your response directly affects how much damage identity thieves can do.
Place a credit freeze. To prevent new accounts from being opened in your name, request a free credit freeze with all three major credit bureaus: Equifax, Experian, and TransUnion. A freeze restricts access to your credit report, making it extremely difficult for anyone to open new credit accounts using your information. You can temporarily lift the freeze when you need to apply for legitimate credit and refreeze it afterward.
Place a fraud alert. A temporary fraud alert on your credit report notifies creditors to take extra steps to verify your identity before opening new accounts. A fraud alert is free, lasts one year, and only needs to be placed with one credit bureau, which is required to notify the other two.
File a report with the Federal Trade Commission. Visit IdentityTheft.gov to file an identity theft report with the Federal Trade Commission (FTC). The site will guide you through creating a recovery plan tailored to your specific situation, including sample letters you can send to creditors and debt collectors. Your FTC identity theft report serves as official documentation that can help you dispute fraudulent accounts.
Notify the IRS. To prevent tax-related identity theft, file Form 14039, an Identity Theft Affidavit, with the Internal Revenue Service. This alerts the IRS that your SSN has been compromised and helps prevent fraudulent tax returns from being filed in your name. You can also apply for an Identity Protection PIN, which adds an extra layer of verification to your tax filings.
File a police report. Filing a police report establishes an official record of the identity theft, which can be useful when dealing with fraudulent accounts, disputing charges with creditors, or working with financial institutions on recovery. Bring your FTC identity theft report and any documentation of the fraud.
Notify your financial institutions. Contact your bank, credit card companies, and any other financial institutions where you hold accounts. Alert their fraud department so they can place monitoring on your accounts, flag suspicious activity, and help you secure your existing accounts. Review your bank statements carefully for any unauthorized transactions.
Secure your accounts. Update passwords on all sensitive financial and personal accounts. Enable two-factor authentication on every account that supports it. Do not share your SSN aloud over the phone unless you initiated the call and have verified the identity of the person you are speaking with.
Monitor ongoing. Identity theft is not a one-time event. Criminals who have your SSN can attempt fraud months or years after the initial compromise. Continue monitoring your credit report, bank statements, and Social Security statement regularly. Consider keeping identity theft monitoring services active for at least a year after a known compromise.
Can You Get a New Social Security Number?
The Social Security Administration does allow individuals to apply for a new SSN in extreme cases, but it is rarely granted and comes with significant complications. A new number means starting your credit history from scratch, which can create problems with background checks, loan applications, and employment verification. In most cases, freezing your credit, monitoring your accounts, and filing the appropriate reports provides more practical protection than attempting to replace your number.
Protecting Your Business from SSN Exposure
For small and medium-sized businesses, protecting Social Security numbers and other personally identifiable information is not just an individual concern. It is a business security obligation. Companies routinely store employee SSNs for payroll, tax filings, and benefits administration, along with client personal and financial information.
A data breach that exposes this information creates legal liability, regulatory penalties, and reputational damage on top of the harm to the individuals affected. Businesses that handle sensitive data should ensure they have strong data encryption, network security, access controls, and employee education in place. Limiting who has administrative access to systems that store personal information is one of the simplest and most effective steps you can take.
For businesses without a dedicated security team, a managed IT services provider can enforce these access controls, monitor for suspicious activity, and ensure your data protection policies stay current as threats evolve. Pairing that with dedicated cybersecurity services ensures your protections cover both the infrastructure and the threat landscape.
If you are not sure whether your business is already being targeted, see our guide on the warning signs your business is a target for cybercrime. And for a comprehensive overview of the security practices every business should have in place, read our cybersecurity best practices strategy guide.
LeadingIT is a cyber-resilient technology and cybersecurity services provider. With our concierge support model, we provide customized solutions to meet the unique needs of nonprofits, schools, manufacturers, accounting firms, government agencies, and law offices with 25–250 users across the Chicagoland area. Our team of experts solves the unsolvable while helping our clients leverage technology to achieve their business goals, ensuring the highest level of security and reliability. Call us at 815-788-6041 or book a free assessment today.
