Final answer:
The core tool that Microsoft 365 provides for compliance and security is the Microsoft Compliance Center.
Step-by-step explanation:
The core tool that Microsoft 365 provides to assess, manage, and enforce compliance risk and security posture is the Microsoft Compliance Center.
It is a centralized hub that offers a range of features to help organizations comply with regulations and protect data. With the Microsoft Compliance Center, users can assess their compliance status, manage and track compliance-related activities, and enforce security policies.