# Exact Data Match is configured for sensitive information detection
Exact data match (EDM) is an advanced sensitive information type that detects organization-specific data by matching exact values against an uploaded…
Source: https://maester.dev/docs/tests/ZTA.35034
## Overview
Exact data match (EDM) is an advanced sensitive information type that detects organization-specific data by matching exact values against an uploaded reference database. Unlike pattern-based sensitive information types (SITs) that detect common formats, EDM identifies things like customer lists, employee IDs, or proprietary codes unique to your organization. By configuring EDM-based SITs, you can significantly enhance the accuracy of sensitive information detection in Microsoft Purview, ensuring that critical data is properly identified and protected.
## Remediation
- [Learn about exact data match based sensitive information types](https://learn.microsoft.com/purview/sit-learn-about-exact-data-match-based-sits?wt.mc_id=zerotrustrecommendations_automation_content_cnl_csasci)
- [Get started with exact data match based sensitive information types](https://learn.microsoft.com/purview/sit-get-started-exact-data-match-based-sits-overview?wt.mc_id=zerotrustrecommendations_automation_content_cnl_csasci)
## Run it
The check runs as part of the whole assessment, with the ZeroTrustAssessment module installed:
```powershell
Install-Module ZeroTrustAssessment -Scope CurrentUser
Connect-Maester
Invoke-Maester -Pack ZTA -SkipBuiltIn
```
Leave out `-SkipBuiltIn` to run Maester's own checks in the same run.
About this check
| | |
| --- | --- |
| Severity | High |
| Effort to fix | Medium |
| Impact on users | Medium |
| Pillar | Data, AI |
| Category | Advanced Classification |
| Product | [Purview](/docs/tests/products/purview) |
| Feature | Data classification |
| Area | Data protection |
| Licence | EXCHANGE_S_ENTERPRISE |
| Tenant | Workforce, External |
Product, feature, area and ATT&CK are Maester's: the assessment does not record them, so Maester keeps them in the pack's `taxonomy.json`.