Identity verification is a process used to confirm the identity of an individual, often for security or compliance purposes. This can involve verifying personal information such as name, address, date of birth, and social security number, as well as using additional methods such as biometric data, government-issued identification documents, or knowledge-based authentication questions. Identity verification is increasingly important in a digital age where online fraud and identity theft are common threats, and is used in various industries such as finance, healthcare, and e-commerce to ensure the security of transactions and sensitive information.