Microsoft CRM includes a powerful and highly configurable security model that allows you to configure and restrict information access according to your business needs. Microsoft CRM uses Integrated Windows authentication and Active Directory to manage user accounts and authentication. By combining role-based and object-based security settings with your organization's business unit structure, Microsoft CRM allows you to accommodate very complex security and information access needs. Microsoft CRM also supports project-based and collaborative work by enabling users to share records with teams and individual users.