**MongoDB provides robust security features to protect its database platform from unauthorized access, ensuring compliance with regulatory requirements. To secure MongoDB, administrators must enable access control, enforce authentication, and define user roles with fine-grained privileges. MongoDB supports various authentication mechanisms, including LDAP, Kerberos, x.509 certificates, and Microsoft Active Directory. Additionally, the database allows administrators to define specific permissions for users or applications, enabling a separation of duties between different entities accessing the database. By leveraging these security features, organizations can meet best practices and requirements for data security and regulatory compliance.