Explanation:
Box 1: Data theft by departing users
Policy1: Monitors the printing of files by users that submitted their resignation.
To monitor file printing by departing employees in Microsoft Purview, you should use the Data theft by departing users template and configure a Microsoft 365 HR connector for resignation dates, then add printing as a specific indicator. This template is designed to detect unusual activity from employees who are leaving, and adding the printing indicator will allow you to see specific printing actions in their activity.
Box 2: Data leaks by priority users
Policy2: Monitors the accidental sharing of data of an organization by users in a priority user group.
To detect accidental data sharing by users in a priority user group, you should use the Data leaks by priority users policy template in Microsoft Purview Insider Risk Management. This template is specifically designed to trigger alerts for data leak activities performed by members of a priority user group, making it the most appropriate choice for your scenario.
Box 3: Data leaks
Policy2: Monitors the downloading of files from Microsoft SharePoint Online to personal cloud storage services.
To monitor downloading files from SharePoint Online to personal cloud storage, you should use the Data leaks or Data leaks by priority users policy templates and then configure the policy to use Data Loss Prevention (DLP) indicators. You'll need to create or select an existing DLP policy that identifies the sensitive data being downloaded and configure it to generate alerts for the insider risk management policy.
Reference:
https://learn.microsoft.com/en-us/purview/insider-risk-management-policy-templates