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8. Protect Privacy, SharePoint, Microsoft 365, and AI

Protect Privacy and Support Data-Subject Workflows

Govern the personal information processed by Purview itself and build authorized, traceable workflows for locating and acting on data-subject information.

Approx. 3 min reading · Includes diagrams; allow extra time for reflection and linked resources.

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Your focus

What you’ll learn

  • Design a privacy-aware Purview workflow with a defined purpose, lawful authority, least-privilege review, defensible search, action tracking, and evidence retention.

This lesson explains how privacy purpose, minimization, access, retention, regional requirements, and data-subject workflows apply to Purview evidence and Microsoft 365 content.

Purview evidence can be sensitive personal information

Purview can process emails, files, chats, audit events, alerts, labels, investigation material, and AI interactions. These records may reveal employee behavior, health information, legal advice, customer details, location, performance, or unpolished reasoning. A security purpose does not remove the need for privacy governance.

Define the purpose before collecting or exposing content. Record the approved population, data fields, reviewer roles, geographic and employment constraints, retention period, onward sharing, and deletion or closure rule. Prefer metadata when it answers the question; expose content only to reviewers with a defined need. Use role separation, pseudonymization where supported, audit reviewer activity, and periodically recertify access.

Treat exports as a new copy with its own security and lifecycle. An eDiscovery export placed in an open project folder can defeat careful case permissions. Investigation evidence should inherit classification, access, retention, and incident requirements appropriate to its sensitivity.

Privacy controls surround the Purview evidence lifecycleFive privacy controls surround a protected set of Purview evidence.Sensitive evidence needs a governed purposePURVIEWcontent + activity evidenceDEFINED PURPOSEMINIMIZATIONRETENTIONREVIEWLEAST ACCESS
Privacy controls surround the Purview evidence lifecycle — Purpose, minimization, access, retention, and review constrain the collection and use of sensitive evidence.

A data-subject request is a controlled search and decision process

A data-subject request can require the organization to find, review, export, correct, restrict, or delete personal information under applicable law and policy. Purview search and eDiscovery capabilities can help locate Microsoft 365 content, but the company must define identity verification, authority, scope, exemptions, legal holds, third-party information, response deadlines, and the final action.

Begin with verified subject identifiers and known aliases. Translate the request into systems, custodians, date ranges, data types, and search concepts. Test queries against known material, document unsupported locations, deduplicate carefully, and route potentially privileged or third-party content to authorized review. A search result is a candidate set, not an automatic disclosure package.

Maintain a request ledger containing intake, identity verification, legal basis, searches, sources, reviewers, decisions, redactions, exports, corrections or deletions, exceptions, communications, and closure evidence. Reconcile actions across source systems. If retention or a legal hold prevents deletion, record the authority and communicate the bounded outcome rather than silently overriding preservation.

A data-subject workflow separates search from authorized actionA five-stage bridge connects verified identity to scoped search, review, action, and closure evidence.Search finds candidates; authority determines the actionVERIFYIDENTITYSEARCHLEGALREVIEWSOURCEACTIONCLOSUREEVIDENCE
A data-subject workflow separates search from authorized action — Identity verification, scoped discovery, legal review, source-system action, and closure evidence remain connected.

Resources