Clients often ask if they are protected against viruses and malware. We recommend all clients with PCs or Macs purchase Microsoft 365 Business Premium. This includes enhanced protection when compared to the bundled version which is included with Windows 11.
Defender for Endpoint is also available as part of Microsoft Defender for Endpoint Plan 1, or the Microsoft 365 E5 Security addon, typically added to e.g. Office 365 E3 subscriptions.
This article compares the two versions.

This is the default antivirus and antimalware solution built into Windows 11 and comes at no extra cost.
This is a cloud-powered enterprise-grade security platform designed for businesses.
| Feature | Microsoft Defender | Defender for Endpoint |
|---|---|---|
| Antivirus & Antimalware | ✅ Basic | ✅ Advanced + AI-powered |
| Endpoint Detection & Response | ❌ | ✅ |
| Threat & Vulnerability Mgmt | ❌ | ✅ |
| Centralized Management | ❌ | ✅ |
| Automated Investigation | ❌ | ✅ |
| Integration with Microsoft 365 | ❌ | ✅ |
| Device Health Monitoring | ❌ | ✅ |
| Ideal Use Case | Personal / Unmanaged | Business / Managed |
If you’re running a small business or managing multiple devices, Defender for Endpoint offers a serious upgrade in visibility, control, and protection, so we recommend this for all our customers.
| Product | Licensing | Approx. Cost (per user/month) |
|---|---|---|
| Microsoft Defender (built-in) | Included with Windows 11 | Free |
| Defender for Endpoint Plan 1 | Microsoft 365 Business Premium / E3 add-on | ~$2-3 (add-on) |
| Defender for Endpoint Plan 2 | Microsoft 365 E5 / E5 Security add-on | ~$5-7 (add-on) |
For most small to medium businesses, Microsoft 365 Business Premium is the most cost-effective way to get Defender for Endpoint Plan 1 alongside Office apps, Exchange, Teams, and Intune.
Not sure which protection level is right for you? Contact Cloudrun for a free security assessment and licensing review.
In 2024, Microsoft rebranded many security products under the “Microsoft Defender” umbrella. What was previously called “Microsoft Defender for Endpoint” is now part of the unified Microsoft Defender portfolio. You may also see it referred to as Defender for Business (the SMB-focused SKU included in Business Premium). The core capabilities remain the same regardless of the name.