Exact data match (EDM)

Concept

A Microsoft Purview detection method that compares content against a hashed table of real sensitive values, such as customer account numbers, to reduce false positives compared with pattern matching.

Title graphic: Exact data match (EDM) (Concept)

Type	Concept
Documentation	learn.microsoft.com/purview/sit-learn-about-exact-data-match-based-sits

Episodes about Exact data match (EDM)

Shadow Data Discovery and Governance with Microsoft…

2026-06-07 · Video on YouTube

In this episode of the M365 FM Podcast, we explore one of the biggest hidden risks in modern data governance: shadow data. While Microsoft Purview provides powerful visibility into governed data sources, many organizations assume that what Purview cannot see…

Build Audit-Ready Document Management with SharePoint…

2025-12-11 · Video on YouTube

In a recent podcast, Mirko Peters discussed the critical importance of effective document management and compliance in organizations, emphasizing that lost documents can lead to organizational failure. He presented strategies for building an audit-ready…

Timeline of episodes about Exact data match (EDM)

Articles about Exact data match (EDM) (3)

Surprising Ways Automated Labeling and Encryption Secure Your Data
2026-08-12 · Mirko Peters
Welcome back to the podcast and our companion blog. In today's deep dive, we are expanding on a topic that sits at the very heart of modern digital security: how au…
Exact Data Match in Microsoft Purview
2026-04-26 · Mirko Peters
Understand Exact Data Match in Microsoft Purview, how precise identifiers improve sensitive-data detection, and when EDM is better than pattern matching.
Exact Data Match Not Working: A Complete Microsoft 365 Troubleshooting Guide
2026-04-21 · Mirko Peters
If you’re finding that Exact Data Match (EDM) in Microsoft 365 isn’t working, you’re definitely not alone. This guide is here to help you break do…

Glossary

Community wiki

Short info above, community knowledge below: add practical tips, examples or corrections. New contributions are reviewed first; trusted members publish directly.

Experts and companies for this topic

Nobody has listed this topic yet. Add it to your profile.

Sources

Documentation: learn.microsoft.com/purview/sit-learn-about-exact-data-match-based-sits
Feed for this topic (RSS): entity/exact-data-match/feed.xml
M365.FM episodes on this topic: 2
Articles on this topic: 3

Maintained by Mirko Peters (Microsoft MVP) · Last updated: 2026-11-03