A background check is a process used by a person or company to ensure that a person is who they claim to be. It allows someone to check a person's unlawful record, education, employment in the past, and other previous activities to confirm their validity. The extent, purpose, and validity of background checks vary by country, industry, and individual. An employment background check is often performed when someone applies for a job, although it can occur at any time the company feels appropriate. Several ways are utilized to conduct such a check, ranging from a thorough database search to personal recommendations.