Modern Workplace
Microsoft 365 Security Hardening: A Practical Checklist
Microsoft 365 is the heart of the modern workplace — and a prime target. A practical checklist to harden identity, email, data and collaboration.
Key takeaways
- UEM manages all device platforms from one console.
- Zero-touch provisioning speeds onboarding and standardises builds.
- Compliance policies feed conditional access decisions.
- Automated patching closes the most common attack paths.
What UEM covers
- Enrolment of corporate and personal devices
- Configuration profiles and security baselines
- Compliance policies — encryption, OS version, threat level
- Application deployment and protection policies
- Patch and update management
- Remote lock, wipe and retire
Zero-touch provisioning
With services such as Windows Autopilot and Apple Business Manager, devices ship directly to users and configure themselves on first sign-in — reducing IT effort and ensuring consistent builds.
Corporate versus BYOD
| Scenario | Approach |
|---|---|
| Corporate-owned | Full device management |
| Personal devices | App protection policies that secure corporate data without managing the whole device |
| Shared or kiosk | Locked-down single-purpose configurations |
Linking to zero trust
Device compliance status feeds conditional access, so only healthy, managed devices reach corporate data.
Rollout tips
Pilot with IT, then early adopters; communicate clearly about privacy on personal devices; and measure compliance rates weekly.
Security baselines worth enforcing
- Full-disk encryption with recovery keys escrowed centrally.
- Automatic operating system and browser updates with deferral rings.
- Endpoint detection and response deployed and healthy on every device.
- Local administrator rights removed, with managed elevation where needed.
- Firewall enabled and attack surface reduction rules configured.
- Screen lock and strong sign-in such as Windows Hello for Business.
Patch and update rings
| Ring | Devices | Deferral |
|---|---|---|
| Pilot | IT and volunteers | None |
| Early | Representative 10% of users | A few days |
| Broad | All remaining devices | One to two weeks |
| Critical exceptions | Specialised systems | Tested individually |
Rings catch compatibility problems early without leaving most devices exposed for long.
Reporting that drives action
Track enrolment coverage, compliance rate, encryption status, patch currency and devices that have not checked in recently. Stale devices are often lost, unused or broken — and a risk until retired.
How NAZZTEC helps
As a Microsoft partner, we design Intune and Autopilot deployments, migrate from legacy tools, build compliance and conditional access policies and can operate endpoint management as a managed service.
Migrating from legacy device management
Plan co-management or a phased cutover, migrate policies and applications, pilot with IT, then move departments in waves. Retire legacy agents only after devices report healthy in the new platform.
Next step: explore Modern Workplace Solutions.
Frequently asked questions
Does Intune manage macOS and mobile?
Yes. Intune manages Windows, macOS, iOS/iPadOS and Android, with varying feature depth by platform.
Can we manage devices without VPN?
Yes. Cloud-based UEM manages devices over the internet.
Will users lose privacy on personal phones?
With app protection policies, IT manages only corporate apps and data, not personal content.
NAZZTEC Editorial TeamWritten and reviewed by NAZZTEC practitioners. This briefing is general guidance, not legal advice.
