Design Microsoft Purview DLP policies that actually work
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Use scoping, sensitive information types, simulation mode, policy tips and tuning to roll out Microsoft Purview DLP policies and reduce risk.
TL;DR
Microsoft Purview DLP policies need scoping, suitable sensitive information types, policy tips, simulation mode and tuning. Roll them out in stages and measure whether they reduce risk, avoiding the two failure modes of blocking everything or catching nothing.
Original by Mirko Peters M365, Azure & AI, on M365.FM. Read the original · suggested by Mirko Peters
This is our own summary, not a republication or full translation.
Governance takeaway
- Admins/CoE: Scope Microsoft Purview DLP policies, select sensitive information types, and use simulation mode before enforcement to avoid policies that block everything or catch nothing.
- Security/Compliance: Roll out policy tips and tuning in stages, then measure whether the policy actually reduces risk rather than assuming deployment equals protection.
- Leadership/Business: Expect iterative DLP design because effective protection requires balancing disruption against missed detections.
Frequently asked questions
How does simulation mode help tune a Microsoft Purview DLP policy?
Simulation mode lets administrators test a Microsoft Purview DLP policy before enforcement, helping them tune detection and reduce excessive blocking.
What role do sensitive information types play in Microsoft Purview DLP?
Sensitive information types identify the data conditions used when designing Microsoft Purview DLP policies, helping policies catch relevant information rather than nothing.
How should Microsoft Purview DLP policies be rolled out?
Microsoft Purview DLP policies should be rolled out in stages, using scoping, policy tips, simulation mode and tuning while measuring risk reduction.