Microsoft Defender Deployment
Most businesses pay two or three vendors for what Microsoft Defender covers.
You are probably paying twice
A typical setup we walk into is Microsoft 365 for email and files, a separate antivirus product on every machine, and often a third tool doing email filtering or endpoint detection. Three vendors, three renewals, three consoles, three support numbers.
A good deal of that overlaps. Microsoft Defender covers endpoints, email, identity and cloud apps, and depending on what you are licensed for you may already hold part of it without ever switching it on. Whatever you are running, the first thing worth knowing is what you already own against what you are buying separately.
That is where we start. A licensing and tooling review that puts your Microsoft entitlements next to your third party invoices so the overlap is visible in one place. Sometimes consolidating saves real money. Sometimes a specialist tool earns its keep and should stay. You get a straight answer either way, and if your licensing does not cover what you need we will tell you what the upgrade costs and what it replaces, so you can compare it against what you already spend.
Threat Protection Coverage
Full deployment across every endpoint.
Why one stack beats three
Two endpoint agents on the same machine is a common cause of the slowness people blame on ageing hardware. They also leave gaps, because each vendor quietly assumes the other is covering something.
Consolidating onto Microsoft Defender means alerts land in one portal instead of three that nobody opens daily. One renewal conversation instead of three. And when something does happen, one place to look and one team accountable for it.
What We Deploy and Why It Matters
Microsoft Defender for Endpoint and Servers
Microsoft Defender for Endpoint provides threat detection, automated investigation, and response across Windows, macOS, iOS, and Android devices, going well beyond traditional antivirus. Microsoft Defender for Servers extends the same engine to your Azure hosted and on premises server infrastructure, so threats on a domain controller or file server are not invisible to the rest of your stack. Which plan you have access to for each depends on your current Microsoft licensing, which we confirm before deployment.
We onboard devices via Intune, configure attack surface reduction rules, and set detection and response to active mode. For servers, we confirm the appropriate plan, onboard through Microsoft Defender for Cloud, and integrate server alerts into your Microsoft Defender XDR console alongside your other signals.
Microsoft Defender for Office 365
Email remains the primary entry point for attacks on small and mid sized businesses. Microsoft Defender for Office 365 provides protection against phishing, business email compromise, malicious attachments, and weaponised links that bypass standard email filtering, though the default configuration Microsoft ships does not enable these capabilities at a level that blocks sophisticated attacks.
We configure Microsoft Defender for Office 365 properly across every mailbox, tune anti phishing policies to detect impersonation of your executives and suppliers, and enable zero hour auto purge to remove malicious emails already sitting in inboxes.
Microsoft Defender for Identity
Microsoft Defender for Identity monitors your Active Directory and Entra ID environment for indicators of identity based attacks, detecting techniques like pass the hash, lateral movement, privilege escalation, and reconnaissance activity that endpoint protection alone will not catch. For businesses running on premises Active Directory or a hybrid environment, it is one of the most valuable security investments available, since without it, attacks moving through your identity infrastructure are invisible to every other security tool in your stack.
We confirm whether your current licensing includes Microsoft Defender for Identity, advise on the most practical path forward if it does not, and deploy sensors on your domain controllers once licensing is in place.
What we do, and what you are left with
We deploy across every device, not a sample. Onboarding, policy configuration, tuning to your environment, and connection into your Microsoft Defender XDR portal. Your existing antivirus comes off as part of the rollout rather than being left running alongside.
When we hand back you get the configuration documented, your team shown how to read an alert, and a named person to call. Not a portal nobody knows how to open.
For the technical detail on how a rollout actually runs, see our guide to deploying Microsoft Defender for Endpoint.
Frequently Asked Questions
It depends on your current Microsoft licensing and which Microsoft Defender products you need. We start with a licensing assessment to review what you already have access to and give you a clear recommendation on what is worth adding based on your environment and risk profile, before any deployment work begins.
Plan 1 covers core endpoint protection including attack surface reduction and next generation antivirus. Plan 2 adds full endpoint detection and response, automated investigation, advanced threat hunting, and extended data retention.
Both. Microsoft Defender for Servers covers Azure hosted servers and on premises servers connected via Azure Arc, integrating with Microsoft Defender for Endpoint so server threats appear in the same console as your endpoint and identity signals.
Yes. Microsoft Defender for Identity monitors both Active Directory and Entra ID for identity based attacks like pass the hash and lateral movement, which is one of the most valuable protections available for businesses running on premises or hybrid Active Directory.
It comes off as part of the rollout. We do not leave two endpoint agents running on the same machine, because they interfere with each other and each one tends to assume the other is handling something. We time the removal so you are never without cover, and we tell you the renewal date to cancel so you are not paying for both.
That is common and it is not a blocker. We plan the cutover around your renewal date rather than asking you to pay twice. If there is a long way left to run we can deploy Microsoft Defender alongside in audit mode first, so it is configured and ready to take over the day the contract ends.
Often, yes. It depends what your current licensing already includes, which is why the review comes first. If everything you need is covered we will say so. If it is not, you will get the cost of the upgrade alongside what it would replace, so you can weigh it against what you already spend elsewhere.
Related Services
Identity & Access Management
Zero Trust Assessments
Essential Eight Assessments
Paying more than one security vendor?
Book a 30 minute call and we will put your Microsoft licensing next to your third party invoices. You will see where they overlap, what consolidating would actually save, and where a specialist tool is worth keeping.