Azure Active Directory is a cloud-based identity and access management service from Microsoft. By using Azure AD, you protect access to all resources and data with multi-factor authentication and risk-based adaptive access policies. This ensures that only authorized users have access. Employees have seamless access to all their apps and a variety of software-as-a-service (SaaS) offerings via single sign-on (SSO), so they can be productive from anywhere. Azure AD also provides a wide range of identity management capabilities such as comprehensive auditing, self-service password and group management, and security monitoring and alerts.