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Critical Start Cortex XDR with MDR is a commercial managed detection and response tool by Critical Start. Attic MDR is a commercial managed detection and response tool by Attic Security. Compare features, ratings, integrations, and community reviews side by side to find the best managed detection and response fit for your security stack.
Based on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Mid-market and enterprise teams already committed to Palo Alto Cortex XDR should choose Critical Start's MDR layer if your SOC is understaffed or lacks incident response depth; the service resolves every alert regardless of severity, not just critical ones, which cuts alert fatigue and ensures nothing slips through triage. The bi-directional Cortex XDR integration means analysts work inside your existing platform rather than context-switching to a separate console, and the mobile SOC app actually works for remote containment, not just read-only dashboards. This is a poor fit for organizations without Palo Alto's NGFW and XDR stack already in place; you're buying tightly integrated MDR for a specific platform, not a platform-agnostic detection service.
Mid-market organizations where Microsoft 365 is the crown jewel and phishing is the loudest alarm should pick Attic MDR for its real-time detection of fake login pages paired with forced verification screens that actually stop credential theft at the gate. The vendor covers NIS2 compliance reporting and daily automated remediation against CIS standards, meaning your team stops manually patching configuration drift. Skip this if you need visibility beyond Microsoft's ecosystem or rely on on-premises Active Directory; Attic's strength is depth in cloud identity and email, not breadth.
MDR service layered on Palo Alto Cortex XDR for alert resolution and breach prevention.
24/7 managed detection and response service for Microsoft 365 environments
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Common questions about comparing Critical Start Cortex XDR with MDR vs Attic MDR for your managed detection and response needs.
Critical Start Cortex XDR with MDR: MDR service layered on Palo Alto Cortex XDR for alert resolution and breach prevention. built by Critical Start. headquartered in United States. Core capabilities include Monitoring of unlimited data volumes ingested from Cortex XDR Prevent and Pro, Resolution of all alerts regardless of severity or priority level, Coverage across endpoint, network, and cloud data sources..
Attic MDR: 24/7 managed detection and response service for Microsoft 365 environments. built by Attic Security. headquartered in Netherlands. Core capabilities include 24/7 monitoring of Microsoft 365 environments, cloud, devices, emails, files, Teams, and network connections, Real-time detection of fake Microsoft 365 login pages with red alert screens and authenticity verification, Automated incident response and threat containment when suspicious activities are detected..
Both serve the Managed Detection and Response market but differ in approach, feature depth, and target audience.
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