EST. 1990 // 36 YEARS ENTERPRISE INFRASTRUCTURE ENGINEERING • CENTRAL FLORIDA ONSITE & NATIONWIDE REMOTE
DIRECT DISPATCH: (407) 917-5250
SYS-01 // CLOUD & IDENTITY GOVERNANCE

Microsoft Office & M365 Organization Management

Architectural tenant governance, Entra ID zero-trust posture, strict email deliverability enforcement, and data boundary protection for organizations running on Microsoft 365.

ARCHITECTURAL SCHEMATIC: SYS-01 TOPOLOGY VECTOR SVG RENDERING • AIR-GAPPED FABRIC
Microsoft 365 and Entra ID Tenant Posture Architectural Schematic
DMARC POSTURE
p=reject (100% Strict)

Zero executive spoofing risk

MFA ADOPTION
FIDO2 / Number Match

Passkey & conditional access

PRIVILEGE MODEL
Zero Standing Admin

Entra PIM just-in-time access

BACKUP RETENTION
Air-Gapped Immutable

Exchange & SharePoint BCDR

CAPABILITY CATALOG // SYS-01

Architectural Capabilities & Deliverables

Specific technical interventions, deployment baselines, and governance deliverables included in this practice.

Entra ID & Identity Posture

Risk-based Conditional Access policies, FIDO2 hardware passkey enforcement, trusted compliance device binding, impossible travel detection, and automated sign-in token protection.

Exchange Online & Mail Flow

Strict DMARC p=reject implementation, dual-selector 2048-bit DKIM key rotation, hardened SPF -all syntax, inbound anti-phishing threshold tuning, and Zero-Hour Auto Purge (ZAP).

SharePoint & Teams Data Governance

Comprehensive permission audits, elimination of anonymous public file sharing links, Microsoft Purview sensitivity labeling, containerized guest access, and DLP exfiltration blocks.

Intune MDM & Device Compliance

Automated BitLocker encryption key escrow to Entra ID, Windows Autopilot zero-touch enrollment profiles, and Mobile Application Management (MAM) protection for iOS and Android.

Licensing Optimization & Sizing

Exhaustive SKU review (Business Premium vs E3/E5) eliminating redundant third-party SaaS subscriptions (standalone anti-spam, duplicate MDM, expensive e-sign).

Copilot Pre-Activation Sanitization

Pre-AI permission hardening across all document libraries to ensure Microsoft 365 Copilot never indexes or surfaces confidential HR, payroll, or executive records to unauthorized staff.

TECHNOLOGY ECOSYSTEM // PLATFORMS & STANDARDS

Supported Technology Stacks & Protocols

Vendor-neutral integration across enterprise hardware, hypervisors, and cloud environments.

Identity & Access
  • • Microsoft Entra ID (P1/P2)
  • • Privileged Identity Management (PIM)
  • • Conditional Access
  • • Self-Service Password Reset (SSPR)
Productivity & Mail
  • • Exchange Online Protection (EOP)
  • • SharePoint Online
  • • Microsoft Teams
  • • OneDrive for Business
Security & Compliance
  • • Microsoft Defender for Office 365
  • • Microsoft Purview DLP
  • • DMARC Analyzer
  • • eDiscovery Standard
Device Management
  • • Microsoft Intune
  • • Windows Autopilot
  • • Apple Business Manager Integration
  • • Android Enterprise Work Profile
PROVEN FIELD EXECUTION // CASE STUDY

Healthcare Organization: Zero-Trust M365 Transformation

The Challenge

An 85-seat healthcare services provider experienced recurring executive email spoofing attempts and possessed over 140 unmonitored public SharePoint document links created by former contractors.

Engineering Solution

Steve Cormier conducted an exhaustive tenant audit, implemented strict DMARC p=reject with 2048-bit DKIM rotation, deployed Entra ID Conditional Access requiring FIDO2 number matching, revoked all external sharing links, and established Purview sensitivity labels.

Quantified Outcome

Zero email spoofing compromises over 24 months, complete compliance with HIPAA Technical Safeguards, and a 28% monthly licensing cost reduction through Business Premium consolidation.

DIRECT ENGAGEMENT WITH STEVE CORMIER

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