Microsoft Purview: Data Loss Prevention - Count of Labelled Documents Condition
- Vendor
- Microsoft
- Product
- Microsoft Purview, Exchange
- Type
- Security
- Announcement date
- 2026-05-15
- Effective date
- Date not published
- Impact
- Affected
In brief
Microsoft Purview: Data Loss Prevention - Count of Labelled Documents Condition
What the source says
This release introduces a new condition for Exchange Online policies: “Count of labeled documents is greater than.” This condition evaluates the number of attachments in an email message that carry a matching sensitivity label. When the count exceeds a defined threshold, the DLP rule is triggered, and configured actions are applied. This capability enables detection of high-volume data exfiltration scenarios, where multiple sensitive files—individually low-risk—collectively represent a significant compliance or security risk. Existing conditions evaluate file content, but do not provide controls based on the volume of labeled attachments. GA date: December CY2026 Preview date: November CY2026 In development General Availability Preview Worldwide (Standard Multi-Tenant) Microsoft Purview Web
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Reading for a salesperson
Who is affected: The audience described by the Microsoft update is represented by: Microsoft Purview: Data Loss Prevention - Count of Labelled Documents Condition This release introduces a new condition for Exchange Online policies: “Count of labeled documents is greater than.” This condition evaluates the number of attachments in an email message that carry a matching sensitivity label. When the count exceeds a defined threshold, the DLP rule is triggered, and configured actions are applied. This capability enables detection of high-volume data exfiltration scenarios, where m
Why it matters: The change matters because the official source describes: Microsoft Purview: Data Loss Prevention - Count of Labelled Documents Condition This release introduces a new condition for Exchange Online policies: “Count of labeled documents is greater than.” This condition evaluates the number of attachments in an email message that carry a matching sensitivity label. When the count exceeds a defined threshold, the DLP rule is triggered, and configured actions are applied. This capability enables detection of high-volume data exfiltration scenarios, where m
Urgency: Monitor
Next action: Review affected accounts with the customer using the official announcement.
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Risks and objections
- The official source does not establish facts beyond the quoted material.
Points to confirm
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Evidence and traceability
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- Raw capture
2026-08-29T09:22:49.319599+00:00
- Event
Microsoft Purview: Data Loss Prevention - Count of Labelled Documents Condition This release introduces a new condition for Exchange Online policies: “Count of labeled documents is greater than.” This condition evaluates the number of attachments in an email message that carry a matching sensitivity label. When the count exceeds a defined threshold, the DLP rule is triggered, and configured actions are applied. This capability enables detection of high-volume data exfiltration scenarios, where multiple sensitive files—individually low-risk—collectively represent a significant compliance or security risk. Existing conditions evaluate file content, but do not provide controls based on the volume of labeled attachments. GA date: December CY2026 Preview date: November CY2026 In development General Availability Preview Worldwide (Standard Multi-Tenant) Microsoft Purview Web
source - Product Microsoft Purview
Microsoft Purview: Data Loss Prevention - Count of Labelled Documents Condition This release introduces a new condition for Exchange Online policies: “Count of labeled documents is greater than.” This condition evaluates the number of attachments in an email message that carry a matching sensitivity label. When the count exceeds a defined threshold, the DLP rule is triggered, and configured actions are applied. This capability enables detection of high-volume data exfiltration scenarios, where multiple sensitive files—individually low-risk—collectively represent a significant compliance or security risk. Existing conditions evaluate file content, but do not provide controls based on the volume of labeled attachments. GA date: December CY2026 Preview date: November CY2026 In development General Availability Preview Worldwide (Standard Multi-Tenant) Microsoft Purview Web
source - Product Exchange
Microsoft Purview: Data Loss Prevention - Count of Labelled Documents Condition This release introduces a new condition for Exchange Online policies: “Count of labeled documents is greater than.” This condition evaluates the number of attachments in an email message that carry a matching sensitivity label. When the count exceeds a defined threshold, the DLP rule is triggered, and configured actions are applied. This capability enables detection of high-volume data exfiltration scenarios, where multiple sensitive files—individually low-risk—collectively represent a significant compliance or security risk. Existing conditions evaluate file content, but do not provide controls based on the volume of labeled attachments. GA date: December CY2026 Preview date: November CY2026 In development General Availability Preview Worldwide (Standard Multi-Tenant) Microsoft Purview Web
source - Insight a salesperson
Microsoft Purview: Data Loss Prevention - Count of Labelled Documents Condition This release introduces a new condition for Exchange Online policies: “Count of labeled documents is greater than.” This condition evaluates the number of attachments in an email message that carry a matching sensitivity label. When the count exceeds a defined threshold, the DLP rule is triggered, and configured actions are applied. This capability enables detection of high-volume data exfiltration scenarios, where multiple sensitive files—individually low-risk—collectively represent a significant compliance or security risk. Existing conditions evaluate file content, but do not provide controls based on the volume of labeled attachments. GA date: December CY2026 Preview date: November CY2026 In development General Availability Preview Worldwide (Standard Multi-Tenant) Microsoft Purview Web
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