Label MasterLabel Master
Built for Microsoft 365

Catch risky label downgrades and External File Sharing. Before they become breaches.

Label Master watches your Microsoft 365 sensitivity labels around the clock, scores every change for risk, and alerts your team the moment something looks wrong. Get notified in Teams, Slack, or email before a downgrade or oversharing incident spreads.

No credit card required · Connect your tenant in minutes

Real-Time Change Detection

Pulls Microsoft 365 audit logs every 15 minutes to catch labels applied, removed, upgraded, or downgraded — flagging the moment sensitive data loses its protection.

Smart Risk Scoring

Weighs downgrades, original sensitivity, external sharing, and repeat offenders into a Low→Critical score — fully tunable to your org's risk tolerance.

Real-time Alerting

Rule-based alerts to email, Slack, Teams, and an in-app bell — sent instantly or digested, with built-in review workflows so nothing falls through the cracks.

Multi-tenant & Roles

Isolated workspaces with Admin, and Viewer roles. Every admin action is logged to a full audit trail

No E5 Required

Runs on Business Premium, E3, or standalone Purview add-ons — get sensitivity label monitoring without upgrading to a $57/user E5 license.

5-Minute Setup

Connect your Microsoft 365 tenant with read-only Graph API permissions — no agents, no scripts, no Purview expertise needed to get your first alert.

Simple, transparent pricing

14-day free trial on every plan.

Most popular

Growth

$100/mo

or $960/yr billed annually

  • Up to 150 monitored users
  • 90-day event history
  • All alert channels
  • Weekly reports
  • Slack & Teams webhooks

Business

$200/mo

or $1920/yr billed annually

  • Unlimited monitored users
  • 1-year event history
  • Priority support
  • Custom risk scoring
  • Compliance exports
Microsoft Purview & information protection

Your Data Is Everywhere. Your Protection Should Be Too.

Microsoft Purview helps organizations discover, classify, protect, govern, and monitor sensitive information throughout its lifecycle.

From an employee sending a confidential spreadsheet to the wrong recipient to sensitive information being copied into an AI tool, modern organizations need more than traditional security controls. They need visibility and control over the data itself.

You cannot protect what you cannot identify.

Data protection lifecyclelive
  1. User01
  2. Document02
  3. Classification03
  4. Protection04
  5. Monitoring05
  6. Compliance06
Data classification

Security Starts With Knowing What Your Data Is

Organizations cannot effectively protect information they cannot identify, understand, and classify.

Highly Confidential — control expectations

Highest Protection
Who should access it?
A tightly scoped, explicitly approved group.
Can it be shared externally?
Normally restricted; exceptions need approval.
Should it be encrypted?
Yes — with usage rights that travel with the file.
Should DLP policies apply?
Yes — strict policies, typically blocking.
Should retention apply?
Yes, with records management where required.
Should activity be monitored?
Yes — detailed monitoring and alerting.
Capabilities

Microsoft Purview: Turning Data Into Managed, Protected Information

Microsoft Purview brings together capabilities for data security, data governance, and compliance management across Microsoft 365 and connected sources.

Microsoft Purview

Sensitivity Labels

Help organizations classify information and apply protection based on its sensitivity.

Availability of individual capabilities depends on licensing, configuration, and supported workloads.

  1. Discover
  2. Classify
  3. Protect
  4. Govern
  5. Monitor
  6. Demonstrate
Real-world scenario

What Happens When a Confidential File Leaves the Organization?

Sarah works in Finance and is about to email a payroll spreadsheet to a personal Gmail account.

payroll_q3_final.xlsx
Highly Confidential
Employee Name
•••••••••
Employee ID
EMP-••••
Salary
••••••
Bank Information
•••• •••• ••42

Recipient: sarah.personal@gmail.com

  1. Step 1 — Discover

    Sensitive information detected

    The document contains employee names, employee IDs, salary figures, and bank information.

  2. Step 2 — Classify

    Sensitivity: Highly Confidential

    The content matches the organization's highest classification tier.

  3. Step 3 — Protect

    Protection applied

    Appropriate protection can be applied according to organizational policy, such as encryption and usage restrictions.

  4. Step 4 — DLP Check

    Policy evaluation

    Purview evaluates the activity against configured organizational policies.

  5. Step 5 — Policy Decision

    Blocked

    Your organization does not allow highly sensitive payroll information to be sent to personal email.

    AllowWarnBlock
  6. Step 6 — Audit

    Evidence captured

    Activity recorded for investigation and compliance review.

External sharing

What If Someone Shares a Confidential Document?

An employee attempts to share a confidential customer report with an external recipient.

  1. Document
  2. Classification
  3. External share
  4. Policy evaluation
  5. Allow / Warn / Block
  6. Audit
Allow

The recipient is an approved partner and the label permits controlled external collaboration.

Warn

The user is prompted to confirm a business justification before sharing continues.

Block

The organization's policy does not permit this content to leave the tenant.

The appropriate response depends on the organization's policies, configuration, workload, licensing, and business requirements. Not every external sharing attempt is automatically blocked.

AI data security

Your Employees Are Using AI. Is Your Sensitive Data Going With Them?

Generative AI creates new paths for sensitive information to leave controlled environments — often with good intentions and no malicious intent.

Customer data in an AI assistant

An employee copies customer information into an AI assistant to draft a reply.

Strategy uploaded to an external AI service

An employee uploads a confidential business strategy document to an external AI service.

AI summarizing sensitive HR content

An employee asks an AI system to summarize sensitive HR information.

  1. Data
  2. Classification
  3. Policy
  4. AI activity
  5. Monitor / Allow / Warn / Block

AI Security Starts With Data Awareness.

Organizations need to understand what information is being used, where it is going, and whether that use complies with organizational policies. Coverage of AI-related activity depends on the tools in use, licensing, and how policies are configured.

Compliance

Compliance Is More Than Having a Policy

Modern compliance is not just about having policies. It is about knowing what your data is, where it goes, who can access it, how it is protected, and being able to demonstrate that the right controls are in place.

Stated

“We have a policy.”

  • A document describes what should happen.
  • Classification depends on individual judgement.
  • Evidence is gathered manually, after the fact.
Demonstrated

“We can demonstrate the control.”

  • Labels and policies apply protection consistently.
  • Activity is monitored against configured rules.
  • Audit evidence is available when asked for it.
  1. Policy
  2. Classification
  3. Protection
  4. Monitoring
  5. Audit evidence
  6. Review
  7. Improvement

Auditors, regulators, customers, and business partners may expect organizations to demonstrate how sensitive information is protected — not simply state that policies exist.

Compliance Manager

Measure Your Compliance Posture

Microsoft Purview Compliance Manager can help organizations assess compliance posture and manage improvement actions over time.

Compliance posture overview

Illustrative Example — Not an Actual Microsoft Purview Score
82%Overall
Data Protection
85%
Identity & Access
91%
Information Governance
72%
Audit & Monitoring
88%

Improvement actions

  • Review sensitive information classification
  • Configure appropriate DLP policies
  • Review external sharing
  • Improve audit coverage
  • Review retention requirements
  • Protect sensitive information
  • Review access to sensitive data
Data lifecycle management

Data Has a Lifecycle. Your Controls Should Follow It.

Classify

Its sensitivity and importance are identified.

Good compliance is not a single control. It is a lifecycle.

Audit & investigation

When Something Goes Wrong, Can You Prove What Happened?

Audit capabilities can provide visibility into supported user and administrator activity, helping security and compliance teams investigate events.

  1. 09:14User accessed confidential document
  2. 09:16Document downloaded
  3. 09:18External sharing attempted
  4. 09:19DLP policy triggered
  5. 09:19Sharing blocked
  6. 09:20Security team investigates
  7. 09:25Incident reviewed
Risk surface

Where Can Sensitive Data Go Wrong?

Most data incidents are not dramatic breaches. They are everyday actions taken without visibility into what the data actually is.

Accidental Email

Risk
Sensitive information sent to the wrong recipient.
Example
Auto-complete selects an external contact with a similar name.
Potential impact
Unintended disclosure of personal or financial data.
Possible controls
Sensitivity labels, DLP policy tips, warn-or-block rules, audit review.
Label Master + Microsoft Purview

From Classification to Protection

Label Master helps organizations design, standardize, document, and operationalize their information classification strategy. Microsoft Purview provides Microsoft security, governance, and compliance capabilities that can be used to implement many of those controls.

  1. 01

    Understand Your Data

  2. 02

    Define Classification

  3. 03

    Create Sensitivity Labels

  4. 04

    Map Protection Requirements

  5. 05

    Build DLP Policies

  6. 06

    Apply Retention

  7. 07

    Monitor & Audit

  8. 08

    Improve

Label Master complements Microsoft Purview. It does not replace Microsoft Purview.

Maturity model

Where Is Your Organization Today?

Data security maturity is a path, not a switch. Most organizations sit between two levels at any time.

Level 3 — Classified

Current challenge
Labels exist but protection is not yet tied to them.
Recommended next step
Map each label to concrete protection and sharing requirements.
Example control
Sensitivity labels applied manually, automatically, or by recommendation.
Interactive

What Would You Do?

Three short scenarios that security, compliance, and IT teams see every week.

Scenario 1

You receive a spreadsheet containing employee salaries. How should it generally be classified?

Scenario 2

An employee attempts to send sensitive customer information to a personal email account.

Scenario 3

An employee leaves the organization. What should happen to important business records?

What Happens If Your Most Sensitive Data Leaves Your Organization Tomorrow?

Can it be opened?
Can it be shared?
Can it be emailed?
Can it be downloaded?
Can it be copied?
Can it be printed?
Can it be uploaded to AI?
Should it be retained?
Should it eventually be deleted?

These questions are at the heart of modern information protection.

Protect the Data. Prove the Control. Improve the Outcome.

Modern compliance requires more than policies sitting in a document. Organizations need to understand their data, classify it consistently, protect it appropriately, monitor its use, and maintain evidence of their controls.

Microsoft Purview provides technology and capabilities that can help organizations protect and govern data and manage compliance requirements. Actual compliance depends on an organization's policies, configuration, licensing, processes, people, and applicable regulatory requirements. Microsoft and Microsoft Purview are trademarks of the Microsoft group of companies. Label Master is an independent product and is not affiliated with or endorsed by Microsoft.

FAQ

Microsoft Purview & Data Classification — Common Questions