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Microsoft 365 security hardening

Strengthen the identities and email your business depends on.

Review your Microsoft 365 tenant, prioritize configuration gaps and apply practical identity, email and device safeguards within your available licensing.

Designed for

Microsoft 365 customers improving protection against account compromise and malicious email.

Service illustration: Microsoft 365 security hardening — Microsoft
Protect access to business accountsBring devices into the security planReduce exposure in email and data
MicrosoftMicrosoft partnership

Connect with Arselor on Microsoft Marketplace.

Explore Arselor’s Microsoft partner profile and connect with our team about Microsoft 365, Azure and security services.

The solution, explained

Understand what it can do for you.

01

Protect access to business accounts

Review administrator roles, multifactor authentication and access policies. Match identity controls to your tenant, subscriptions and operational requirements.

02

Bring devices into the security plan

Plan supported device management and endpoint protection using appropriate Microsoft capabilities, including Intune and Defender where licensed. Stage the rollout with representative users.

03

Reduce exposure in email and data

Review email protection, sharing and information-handling settings. Monitoring and response responsibilities are agreed alongside the configuration.

See it in your business

Choose a situation. Explore the possibilities.

Microsoft 365 security hardening

A security baseline

Review the tenant and introduce prioritized controls with a managed rollout plan.

Discuss this use case
The connected workflow
  1. 01Identity
  2. 02Devices
  3. 03Email & files
  4. 04Monitoring
Your Arselor engagement

From the first requirement to the final handover.

01

Tenant security and license review

02

Identity and MFA configuration

03

Email protection policy review

04

Device and access policy alignment

05

Controlled testing and exception review

06

Configuration handover and guidance

Available controls depend on your licenses. Additional subscriptions are quoted separately.
How Arselor delivers

Apply a tested Microsoft 365 security baseline.

Review exposure and licensing

Review privileged accounts, sign-in settings, devices and available protection capabilities in the tenant.

Microsoft 365 security hardening

Before you decide

Will hardening interrupt user access?

Some controls change sign-in or device requirements. We plan communication, pilot testing and exceptions before wider rollout.

Do we need additional licenses?

We check which controls your current subscriptions support; any required additions are identified and quoted separately.

Connected services

Build the rest of the picture.

Service illustration: Microsoft 365 & Azure — Microsoft + Azure

Microsoft 365 & Azure

Licensing, deployment, email migration, collaboration and security configuration across Microsoft 365 and Azure.

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How it helps your business

A productive team starts with a well-managed cloud.

  • A connected digital workplace
  • Identity and access with ownership
  • Cloud that supports the business

Standardize email, meetings and document sharing as employees and locations increase.

Full service
Service illustration: Managed hosting & web services — Arselor

Managed hosting & web services

Managed websites, application hosting, VPS and dedicated servers, with monitoring, updates, backups and local support.

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How it helps your business

Keep your applications available and your infrastructure cared for.

  • A home for your business systems
  • Manage the essentials
  • Plan beyond deployment

Connect your domain, hosting and certificate so the site has a clear operating owner.

Full service
Service illustration: Business email migration — Microsoft

Business email migration

Plan and coordinate mailbox migration, domain changes, account setup and user onboarding into a managed Microsoft 365 workplace.

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How it helps your business

Move your email with people and continuity in mind.

  • Map the mail environment
  • Validate before the wider move
  • Coordinate cutover and follow-up

Assess your current email platform and select an appropriate migration approach.

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Your next step

Bring us the challenge. Let’s plan the way forward.

A focused conversation with the right Arselor specialist.

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