An access control system is a security solution designed to manage and regulate who is allowed to enter or exit specific areas within a building or facility. These systems typically use electronic credentials, such as key cards, PIN codes, biometric scans (like fingerprints or facial recognition), or mobile apps to verify the identity of individuals. Access control systems can be customized to grant or restrict access based on various factors, such as time of day, user role, or location. By doing so, they enhance security, protect sensitive information and assets, and provide detailed records of entry and exit activities for auditing and monitoring purposes.