Sensitivity labels + DLP + insider risk + information barriers + Copilot integration. 4-phase deployment methodology from EPC Group.
Last updated by Errin O'Connor, Founder & Chief AI Architect, EPC Group
Microsoft Purview is critical for M365 Copilot deployments — without sensitivity labels + DLP, Copilot exposes over-shared content to unauthorized users. 4-phase EPC Group deployment: (1) 5-tier sensitivity label taxonomy + auto-labeling (fixed fee, 4wk), (2) DLP across M365 + endpoints (fixed fee, 4wk), (3) Insider Risk + Communication Compliance (fixed fee, 4wk), (4) Compliance Manager for HIPAA/SOC 2/FedRAMP/GDPR (fixed fee, 4wk). Total: 16 weeks, fixed fee quoted after a scoping call. Requires M365 E5 Compliance add-on ($12/user) or E5 ($57/user). ROI: eliminates third-party DLP + eDiscovery + insider risk tools ($400K-$600K/year for enterprise).
Microsoft Purview is a unified data governance + risk + compliance platform covering: (1) Data Loss Prevention (DLP) - policy enforcement across M365, endpoints, cloud apps, and now Copilot. (2) Sensitivity labels - classification schema applied to documents, emails, and Teams. (3) Information Protection - encryption + rights management for labeled content. (4) Insider Risk Management - behavioral analytics to detect data exfiltration attempts. (5) Communication Compliance - screen inappropriate chat, email, Teams content. (6) eDiscovery - legal hold + subpoena response. (7) Records Management - retention policies and disposition. (8) Data Catalog - metadata across M365 + Azure + hybrid data sources. (9) Compliance Manager - regulatory framework mapping (HIPAA, SOC 2, FedRAMP, GDPR).
Copilot inherits SharePoint + OneDrive + Teams permissions - so if data is over-shared, Copilot surfaces it to unauthorized users. Purview solves this three ways: (1) Sensitivity labels tell Copilot which content requires special handling; labeled Confidential/Highly Confidential content is excluded from responses unless the user has explicit access. (2) DLP policies block Copilot from including regulated content (PHI, PII, MNPI) in responses even if the user CAN access it. (3) Insider Risk Management flags suspicious Copilot query patterns (e.g., someone systematically probing HR salary docs). Without Purview, most Copilot deployments are a compliance incident waiting to happen.
EPC Group 4-phase deployment: Phase 1 (weeks 1-4, fixed fee) - Data classification framework, sensitivity label taxonomy design (5-tier: Public / General / Confidential / Highly Confidential / Regulated), auto-labeling rules for common patterns (SSN, credit card, PHI markers). Phase 2 (weeks 5-8, fixed fee) - DLP policy deployment across Exchange, SharePoint, OneDrive, Teams, and endpoints. Phase 3 (weeks 9-12, fixed fee) - Insider Risk Management + Communication Compliance. Phase 4 (weeks 13-16, fixed fee) - Compliance Manager configuration for the primary regulatory framework (HIPAA / SOC 2 / FedRAMP / GDPR). Total: one fixed fee over 16 weeks for enterprise-grade Purview.
Purview requires Microsoft 365 E5 Compliance add-on OR E5 (full E5 includes it) for full functionality. E3 users get basic sensitivity labels + basic DLP but miss Insider Risk, Communication Compliance, Advanced eDiscovery, and Records Management. For regulated industries, E5 is typically required. Purview add-on to E3: $12/user/month. E5 full upgrade: $57/user/month (from $36 for E3). ROI on E5 for a 1,000-user regulated organization: $252,000/year additional license cost, but eliminates need for third-party DLP ($150K-$300K/year) + eDiscovery tools ($100K/year) + insider risk platform ($200K+/year). Net: a net-positive annual position once the third-party tools are retired, plus operational simplification.
Sensitivity labels are metadata + policy tags applied to documents, emails, meetings, and Teams. Each label carries: (1) Encryption settings - who can decrypt (specific groups, domains, external users). (2) Content marking - visible watermarks, headers, footers. (3) Endpoint DLP - block copy, print, screen capture. (4) Auto-labeling triggers - regex patterns, keyword matching, ML classification (SSN, credit card, PHI). (5) Container defaults - all files in a labeled SharePoint site inherit the label. EPC Group recommends 5-tier taxonomy: Public (marketing), General (default internal), Confidential (HR, financial), Highly Confidential (executive, M&A, PHI), Regulated (HIPAA/CJIS/FedRAMP full DLP block).
Information barriers prevent specific user groups from communicating or seeing each other content in Teams, SharePoint, and OneDrive. Common use cases: (1) Investment banking - separate advisory + trading desks per SEC 15g-5 requirements. (2) Legal firms - prevent conflict-of-interest content leakage between matter teams. (3) M&A due diligence - buyer + seller teams sharing tenant during transaction. (4) Regulated industries - segregate patient data + provider communications under HIPAA. Purview information barriers integrate with Copilot: users on opposite sides of a barrier cannot query each other data even via natural language. Deployment: fixed fee quoted after discovery for enterprise information barrier configuration.
EPC Group Purview fixed-fee accelerators: (1) Purview Readiness Assessment (fixed fee, 2 weeks) - current-state audit, regulatory requirements mapping, target-state framework. (2) Purview Foundation Deployment (fixed fee, 8 weeks) - sensitivity labels + basic DLP + Compliance Manager for primary framework. (3) Purview Enterprise Rollout (16-24 weeks, fixed fee quoted after discovery) - full 4-phase deployment covering DLP + Insider Risk + Communication Compliance + Records Management. (4) Purview + Copilot Governance (fixed-fee bundle) - Purview Foundation + Copilot Governance framework + BYOAI risk mitigation. Managed Purview operations: a monthly retainer, quoted after discovery.
2-week fixed-fee assessment, quoted after a scoping call, maps your current state, regulatory requirements, and target framework. Call (888) 381-9725.
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