What each model means
An internal SOC owns analysts, process, SIEM and integrations. An outsourced SOC may operate selected functions. MDR packages detection, investigation, hunting and coordinated response around agreed telemetry such as EDR/XDR, identity, cloud and logs.
- SIEM centralizes and correlates logs
- EDR/XDR provides endpoint and broader telemetry
- Threat hunting looks beyond known alerts
- Triage separates signal from noise
- Escalation connects detection to action
A practical decision tree
If you have mature leadership, analysts and engineering, strengthen the internal SOC. If tools exist but continuous investigation does not, consider MDR. If neither strategy nor operations is clear, assess the operating model before buying more technology.
Compare outcomes, not labels
Ask who monitors, at what hours, which sources, how incidents are investigated, who can contain, what the client must do and how performance is reviewed. Buying tools is not the same as operating security.
Questions leaders ask
Can MDR replace every SOC function?
Not necessarily. Governance, architecture, engineering and business ownership may remain internal or require other services.