Identity & Data · 2-3 weeks
Microsoft 365 security hardening
Most organizations buy Microsoft 365 E3 or E5 and never finish configuring the security features they are paying for. Microsoft 365 security hardening closes that gap: we implement Conditional Access, enforce MFA, turn on and tune Microsoft Defender for Office, Endpoint, and Identity, set Purview data loss prevention basics, and minimize standing admin rights.
What's included
- Conditional Access policy set: MFA enforcement, device compliance, legacy auth block, risk-based sign-in
- Microsoft Defender for Office 365: Safe Links, Safe Attachments, anti-phishing tuning
- Defender for Endpoint and Defender for Identity onboarding and policy baseline
- Microsoft Purview: DLP starter policies for common sensitive data types
- Secure Score review with the changes that move it most
- Admin role minimization and break-glass account setup
- A short runbook so your team can maintain it
How we work
Scope
A fixed statement of work: what we will do, what you receive, and the timeline. Agreed before any work starts.
Execute
We do the work in your tenant with least-privilege access, with updates at defined checkpoints - not radio silence.
Hand off
Documentation, runbooks, and a walkthrough so your team can operate what we built.
Microsoft 365 Security Hardening: common questions
Is this different from a security assessment?
Yes. The assessment tells you what is wrong; the hardening engagement implements the fixes. Many clients do the assessment first, then hardening for the Microsoft 365 findings.
Will this lock users out?
No. We roll Conditional Access out in report-only mode first, pilot with a small group, and stage enforcement so there are no surprises.
Do we need E5?
No. Most of the value is achievable on E3 or Business Premium. We work with the licensing you have and flag anything that genuinely needs E5.
Related services
Talk to a senior architect about microsoft 365 security hardening
A short call to understand your environment, then a fixed-scope proposal. Based in Denver, Colorado; we work with clients across the US remotely.