Microsoft Defender for Business vs ReliaQuest MDR
Microsoft Defender for Business
microsoft.comReliaQuest MDR
reliaquest.comSide by side
| Figure | Microsoft Defender for Business | ReliaQuest MDR |
|---|---|---|
| Price from | $0.25/mo | — |
| Free plan | — | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | Yes |
| Plans published | 4 | 1 |
| Spec score · Managed Detection and Response Services | 8.4 (#2) | 6.9 (#22) |
| Headquarters | Redmond, Washington, United States | Tampa, Florida, United States |
| Integrations | The product integrates with Microsoft 365 Lighthouse and can work with remote monitoring and management tools and professional services automation software. | GreyMatter integrates with 300+ technology partners and connects to SIEM, EDR, network security, and cloud tools. |
| Support | Microsoft's Defender for Business documentation provides a guide for getting help or contacting support. | ReliaQuest's Ongoing Enablement description includes an assigned Customer Success Manager who maintains a customer roadmap and coordinates reporting and analytics. |
Plans
Microsoft Defender for Business
- Microsoft Defender for Business$3 a month
- Microsoft Entra Internet Access$5 a month
- Microsoft Entra Suite$12 a month
- Microsoft Defender for Business$3 a year
In their own words
Microsoft Defender for Business
Microsoft Defender for Business has no write-up on Specifiction yet; its figures are above.
ReliaQuest MDR
ReliaQuest MDR is an outsourced security-operations service covering continuous monitoring, threat detection, investigation, and incident response. Its overview describes real-time 24/7 coverage, with providers able to hunt proactively for unknown threats. The service works with GreyMatter, an agentic AI security-operations platform for detection, containment, investigation, and response across cloud, hybrid, and on-premises technologies. GreyMatter connects with more than 300 technology partners, including SIEM, EDR, network-security, and cloud tools, and can unify connected sources without moving their data. ReliaQuest offers proof-of-value engagements with trial periods and success criteria agreed before work begins. GreyMatter pricing is per endpoint for the core platform, with additional capabilities priced by covered scope rather than token usage. ReliaQuest says log data is retained for 72 hours for investigations and 30 to 90 days for hunt campaigns, configured by the customer. Pricing is available on request.