Armor vs Quorum Cyber: MDR comparison 2026
Armor is a Platform vendor that requires its own security platform. Quorum Cyber is a Microsoft-ecosystem that requires its own security platform. Armor targets Mid-market and Enterprise organizations; Quorum Cyber serves SMB, Mid-market, and Enterprise. Armor includes 3 attack surfaces in base pricing (Endpoint, Cloud, Network), compared to 4 for Quorum Cyber (Endpoint, Cloud, SaaS, Identity).
Key differences at a glance
Full comparison
Which should you choose?
Choose Armor if:
- •Healthcare or financial services teams already running Microsoft Sentinel who need compliance consulting baked in
- •Multi-cloud shops on AWS, Azure, or GCP that want a single MDR provider across all three
- •Organizations that value IR and forensics included in base pricing rather than as a retainer add-on
Choose Quorum Cyber if:
- •SMBs needing affordable 24/7 MDR via Clarity Defend, with a growth path to enterprise-grade Protect tier
- •You need SaaS and Identity coverage included in base pricing
Bottom line: Armor (Platform vendor) and Quorum Cyber (Microsoft-ecosystem) serve different buyer profiles. Your decision depends on whether you prioritize Armor's armor's niche is regulated cloud workloads where microsoft sentinel is already deployed or Quorum Cyber's the strongest microsoft-native mdr option with a tiered model spanning smb to enterprise, backed ....
Frequently asked questions
What is the main difference between Armor and Quorum Cyber?
Armor is a Platform vendor that is platform-native (requires their own security stack). Quorum Cyber is a Microsoft-ecosystem that is platform-native (requires their own security stack). Armor covers 3 attack surfaces in base pricing vs. 4 for Quorum Cyber.
How do Armor and Quorum Cyber differ in response capabilities?
Armor supports 4 autonomous actions (endpoint isolation, network containment, file quarantine, custom playbooks) and approval is configurable. Quorum Cyber supports 6 autonomous actions (endpoint isolation, process termination, network containment, account disable, file quarantine, custom playbooks) and approval is configurable. Incident response is included with Armor and not included with Quorum Cyber.
How does Armor pricing compare to Quorum Cyber?
Armor pricing: Starting at ~$4,317/month for XDR+SOC (per SourceForge listing). Quorum Cyber pricing: Not published. Contact for custom quote.. Watch for with Armor: Armor Anywhere agent is built on Trend Micro. Running it alongside CrowdStrike or SentinelOne may cause conflicts, forcing a swap.; Compliance consulting (HIPAA readiness, HITRUST prep) is billed as professional services on top of the MDR subscription.. Watch for with Quorum Cyber: Requires Microsoft licensing (E3/E5 or standalone Defender licenses) as a prerequisite. These costs are separate and can be significant.; Microsoft Sentinel consumption costs are usage-based and billed separately by Microsoft. Data ingestion charges can spike unpredictably..
Should I choose Armor or Quorum Cyber?
Choose Armor if: healthcare or financial services teams already running Microsoft Sentinel who need compliance consulting baked in. Choose Quorum Cyber if: microsoft-committed organizations (E3/E5) wanting MDR built natively on Sentinel and Defender with data staying in their own Azure tenant. Armor is not ideal for teams running macOS or mobile-heavy environments with no agent support for either. Quorum Cyber is not ideal for organizations running CrowdStrike, SentinelOne, or any non-Microsoft primary EDR. Quorum Cyber is Microsoft-only..