Zero Trust Implementation for Microsoft 365: Secure AI Productivity with Microsoft Entra ID
by Simplicity IT Inc.
Reduce standing privileged access by 87% with a phased Microsoft 365 Zero Trust rollout.
Built for the CISO who is being asked to attest to Zero Trust in a customer questionnaire and cannot evidence conditional access, device compliance, or data classification. This engagement will reduce standing access and improve the evidence position on identity, device, and data controls.
Who this is for
Organizations with Microsoft 365 E3 or E5 that bought the licensing on a security argument and never operationalized it. The CISO owns the outcome and is usually reacting to a customer security questionnaire, a cyber-insurance renewal, or a regulator. The IT Director carries the change risk and needs the rollout ringed so a bad conditional access policy does not lock out the executive team on a Monday morning.
What we deliver
- A conditional access architecture built on Microsoft's policy templates and deployed in rings, with report-only mode first, named break-glass accounts excluded and monitored, and a documented rollback for every policy.
- Device compliance policy in Microsoft Intune wired into conditional access as an access condition, so an unmanaged or non-compliant device cannot reach corporate data regardless of credential strength.
- Privileged Identity Management for every eligible administrative role, replacing standing assignment with time-bound, approval-gated, MFA-challenged activation, plus an access review cadence that survives the engagement.
- Microsoft Purview sensitivity labels and data loss prevention on the two or three data categories that actually carry your regulatory exposure, rather than a full taxonomy nobody applies.
Outcomes our customers see
A 2,600-seat customer reduced standing privileged assignments from 61 accounts to 8, an 87 percent reduction, with the remainder converted to time-bound activation. Ringed conditional access deployment across 9 policies completed over 30 days with zero helpdesk lockout tickets, against an internal forecast of 40. Sensitivity labeling reached 71 percent coverage of the in-scope document set within 120 days, evidenced in the Purview activity explorer.
How this compares
The common failure is a big-bang conditional access rollout that locks people out and gets reverted, after which nobody will approve a second attempt for a year. This engagement is ringed, report-only first, with break-glass accounts proven before enforcement, so the change lands. On the data side it deliberately starts with two or three real regulatory categories rather than a full classification taxonomy, because partial labeling that is actually applied beats a complete scheme that is not.
Architecture and Microsoft alignment
The target state is Microsoft Entra ID as the control plane with conditional access as the policy decision point, Microsoft Intune supplying device compliance as an access condition, Microsoft Entra Privileged Identity Management governing administrative role activation, and Microsoft Purview providing sensitivity labels and DLP across Exchange, SharePoint, OneDrive, and Teams. Sign-in and audit logs stream to Microsoft Sentinel. Policy is deployed as code and version-controlled so the tenant configuration is reviewable. Aligned to the Microsoft solution plays Secure AI Productivity and Data Security.
Plans
Plans, prices, and full scope per plan are on the Plans tab of this listing.
Prerequisites
Microsoft 365 E3 with Entra ID P1 as a floor; E5 or Entra ID P2 is required for Privileged Identity Management and risk-based conditional access. Global Administrator consent, an agreed maintenance window per ring, and a named change approver on the customer side.
Limitations
Third-party SaaS applications are brought under conditional access only where they support SAML or OIDC federation to Microsoft Entra ID; legacy applications using basic authentication are identified and flagged rather than remediated in this scope. On-premises application access through Entra Private Access or an application proxy is a separate engagement. This does not include endpoint deployment or migration work.
How to buy
Buy through the Azure portal, using Get it in Azure portal on this listing, so the purchase is billed through your existing Microsoft agreement. Private offers on request.
Next step
Get it now in the Azure portal, or request a private offer if the scope or the price needs adjusting first.