Which of the following is NOT a purpose of Microsoft Defender portal?

The purpose of the Microsoft Defender portal is to provide a unified platform for managing security across an organization's digital infrastructure. Each of the other options aligns with the core functions and features of this platform.

Email protection involves safeguarding against phishing attacks and malware, which is a critical component of securing organizational communications. Regulatory compliance refers to ensuring that an organization adheres to laws and regulations, which may involve monitoring and reporting functionalities provided by Microsoft Defender to demonstrate compliance with security standards. Identity management focuses on controlling access and authentication processes to safeguard user identities and sensitive information.

On the other hand, financial auditing does not fall within the primary objectives of the Microsoft Defender portal. While financial auditing is essential for compliance and internal controls, it typically involves review processes and tools dedicated to financial transactions and records, which are distinct from security management and operations provided by the Defender portal. Hence, this is why financial auditing is the correct answer as it does not pertain to the functionalities central to Microsoft Defender.