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When configuring an advanced DLP rule in Microsoft Purview Data Loss Prevention (DLP), you can use a Sensitive Information Type (SIT) condition to detect and classify specific types of sensitive data, such as credit card numbers, Social Security numbers, or custom sensitive data patterns. This allows you to apply protection and trigger actions based on the identified content.

EDM does not store raw data; instead, it requires hashed versions of sensitive data for privacy and security. To upload the hashed data, Microsoft provides the EDM upload agent. This ensures that the data is securely processed and recognized by the EDM service in Microsoft 365.

The Set-AdminAuditLogConfig -AdminAuditLogEnabled $true -AdminAuditLogCmdlets *Mailbox* command is incorrect. This enables admin audit logging, which tracks changes to mailbox configurations (e.g., mailbox settings updates), not user activity inside the mailbox.

To create custom trainable classifiers in Microsoft Purview, the user must have rights in the compliance portal. The Compliance Administrator role provides the necessary permissions to create and manage trainable classifiers. Security roles focus on threat management, and Global Administrator is excessive (not least privilege).

Endpoint DLP builds on Microsoft Defender for Endpoint integration. Before enabling Endpoint DLP, you must turn on device onboarding in Microsoft Purview to allow devices (like Device1) to be enrolled. After onboarding, you can assign DLP policies to endpoints.

Step 1 – Scenario

Microsoft 365 E5 subscription with 100 users and a Microsoft 365 group (Group1).

A sensitivity label (Label1) is published as the default label for Group1.

Label1 contains two sublabels: Sublabel1 and Sublabel2.

Requirement: Ensure Sublabel1 settings are applied by default to Group1.

Step 2 – Understanding label hierarchy

In Microsoft Purview Information Protection, a parent label (Label1) is a container.

Sublabels (Sublabel1, Sublabel2) inherit the parent name but represent distinct configurations (encryption, watermarking, access, etc.).

A parent label itself cannot have a sublabel’s settings automatically applied unless policy configuration specifies which sublabel is used as the default publishing option.

Step 3 – Why "Modify the policy of Label1" is correct

To apply Sublabel1 by default, the published policy for Label1 must be modified so that Sublabel1 is the default label within the policy.

Simply reordering sublabels (Option A) does not change the default assignment.

Duplicating Sublabel1’s settings into Label1 (Option B) defeats the purpose of having sublabels and adds redundancy.

Deleting the policy of Label1 and publishing Sublabel1 (Option D) would remove flexibility and is unnecessary.

Step 4 – Microsoft Reference

Microsoft Docs: “If you want a sublabel to be applied by default, configure the label policy to select that sublabel as the default label for documents and emails.”

You are creating a Data Loss Prevention (DLP) policy in Microsoft 365 with advanced rules. Advanced DLP rules provide more granular conditions and actions than standard DLP rules.

Conditions available in advanced DLP

According to Microsoft Docs on Conditions in DLP policies:

✅ Content contains → Used to detect sensitive information types, keywords, or exact data matches. This is one of the most common and fundamental DLP conditions.

✅ Content is shared from Microsoft 365 → Used to detect whether content has been shared externally or with specific domains/users. This is a modern advanced DLP condition.

Why the others are not correct:

A. Document property is → This condition applies to information governance retention policies/labels (not DLP). Not available in DLP rules.

B. Attachment's file extension is → This is supported in Exchange mail flow rules (transport rules) but not in advanced DLP rules.

C. Document size equals or is greater than → Also applies in Exchange transport rules and certain SharePoint restrictions, but not available as a DLP rule condition.

The content search uses the KQL editor with the query -Author:USER1. In eDiscovery/Content search, the minus sign denotes NOT and KQL is case-insensitive for property values. Therefore, this query returns items whose Author is not ‘User1’.

File1.docx → Author = User1 → excluded

File2.docx → Author = User2 → included

File3.docx → Author = USER1 (same as User1, case-insensitive) → excluded

Result: File2.docx only.

To prevent the contents of files stored in Channel1 from being included in Microsoft 365 Copilot responses and ensure unauthorized users cannot access them, you should use Microsoft Purview Sensitivity Labels.

Sensitivity labels allow you to classify, protect, and restrict access to sensitive files. You can configure label-based encryption and access control policies to ensure that only authorized users can access or interact with the files in Channel1. Microsoft 365 Copilot respects sensitivity labels, meaning if a file is labeled with restricted permissions, Copilot will not use it in generated responses for unauthorized users.

To validate whether an audit log retention policy will apply to the intended entries, you should configure the following fields:

● Date and time range (UTC) ensures that you are searching for audit logs within the time period when the policy should be applied. Audit logs are time-sensitive, and policies affect logs based on their timestamp.

● Record types allows you to filter and search for specific audit log categories (e.g., Exchange, SharePoint, Teams, etc.) that are affected by the retention policy. Selecting the correct record type ensures that the policy is evaluated against the relevant data.