The best security tool is the one you already have.

DefenderMon exists because millions of Windows devices already ship with world-class protection — it just isn't manageable at scale. We fixed that.

Our story

DefenderMon started the way most good tools do: with a frustrated IT admin. After years of paying for third-party antivirus agents that duplicated what Microsoft Defender already did — while Defender itself sat unmanaged on hundreds of endpoints — we asked the obvious question: why not just manage the built-in one?

So we built a lightweight agent and a clean dashboard that turn Microsoft Defender and Windows Update into a fully managed platform. No replacement engines, no bloat, no per-seat security tax — just visibility and control over the protection every Windows license already includes.

Today DefenderMon helps MSPs, IT teams, and sysadmins keep fleets of all sizes healthy, patched, and protected — from a single pane of glass.

What we believe

Use what's built in

Defender and Windows Update are excellent. They deserve management tooling to match.

Simple beats sprawling

One agent, one dashboard, one line of PowerShell to deploy. That's the whole product.

Security shouldn't be a luxury

Free for small fleets, one flat price for everyone else. No per-device surprises.

Want to talk to us?

We'd love to hear from you.

Contact us