A Social Security Number (SSN) is a unique 9-digit number issued to U.S. citizens and permanent residents. It plays a key role in many important services.
🔹 Required for tax purposes, banking, jobs, and health insurance.
🔹 Many companies ask for SSN before hiring employees.
🔹 Non-residents who cannot get SSN often use ITIN (Individual Taxpayer Identification Number).
⚠️ Important: SSN is sensitive personal information. Never share your actual SSN publicly to avoid identity theft.