Compare authentication and authorization
Authentication(AuthN)

• Establish identity of person or service looking to access resource
• Involve act of challenging party for legitimate credentials
• Provide basis for creating security principal for identity and access control use

Authorization(AuthZ)

• Establish what level of access authenticated person or service
• Specify what data allowed to access

Explore Azure Active Directory

• Microsoft cloud-based identity and access management service
• Helps employees of organization sign in and access resources
• • External resources - include Microsoft 365, Azure portal and SaaS
• • Internal resources - include apps on corporate network and intranet