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24x7 MDR (Sophos) is a commercial managed detection and response tool by IntraLAN. Critical Start Cortex XDR with MDR is a commercial managed detection and response tool by Critical Start. 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 security teams that need threat hunting and incident response outsourced entirely should consider 24x7 MDR (Sophos); the service prioritizes detection and analysis over your team doing the heavy lifting, with around-the-clock analysts triaging Sophos platform alerts and conducting investigations under NIST RS.AN. The cloud deployment means no infrastructure overhead, which matters if your SOC is understaffed or nonexistent. Skip this if you have mature internal analysts who prefer owning the investigation workflow or if you need deep integration with non-Sophos endpoints; you'll be paying for a managed service when you don't need one.
Critical Start Cortex XDR with MDR
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.
24x7 MDR service utilizing Sophos technology platform
MDR service layered on Palo Alto Cortex XDR for alert resolution and breach prevention.
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Common questions about comparing 24x7 MDR (Sophos) vs Critical Start Cortex XDR with MDR for your managed detection and response needs.
24x7 MDR (Sophos): 24x7 MDR service utilizing Sophos technology platform. built by IntraLAN. headquartered in United Kingdom..
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..
Both serve the Managed Detection and Response market but differ in approach, feature depth, and target audience.
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