Critical Start Cortex XDR with MDR vs Ostra Security: 2026 Comparison

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..

Ostra Security: Managed security service provider offering MDR, SIEM, and endpoint protection. built by Ostra Security. headquartered in United States. Core capabilities include Managed SIEM with real-time threat detection and log analysis, Managed Detection and Response (MDR) with contextual response, Endpoint security protection and management..

Both serve the Managed Detection and Response market but differ in approach, feature depth, and target audience.