Social Security Number (SSN) Fraud

A Social Security number is the cornerstone of financial identity in the United States. With an SSN plus name and date of birth, criminals can apply for credit, claim tax refunds, receive medical care, apply for government benefits, and rent housing under the victim's identity. SSNs are attractive targets precisely because they cannot be easily changed once compromised.

SSNs are exposed through data breaches, phishing, physical theft of documents, and purchase from data brokers. Tax refund fraud, where criminals file a return early to claim a legitimate taxpayer's refund, is a particularly time-sensitive variant — the IRS issues the fraudulent refund before the real return arrives. Medical identity theft using an SSN can corrupt the victim's medical records with another person's information, potentially creating dangerous clinical errors.

Protections include freezing credit at all major bureaux, filing taxes as early as possible (to prevent fraudulent early filing), monitoring the Social Security Administration's online account for unexpected activity, and opting into the IRS Identity Protection PIN programme. Sharing an SSN should be limited to legally required contexts — employment, banking, healthcare; many requests for it are unnecessary.