The Problem
Nearly every security vendor advertises "24/7 monitoring," but the phrase covers everything from a real team of analysts watching live telemetry around the clock to an automated alert forwarded to an inbox nobody checks after 6 PM. Manufacturers buying this service often do not find out which version they actually purchased until an incident happens outside business hours.
Why it Matters Operationally
Attackers deliberately target nights, weekends, and holidays because they know staffing and attention drop off then. A SOC that only functions well during business hours is realistically protecting a plant for about a third of the week. A phishing-based intrusion that sits undetected from Friday night through Monday morning has three full days to move laterally and prepare a ransomware deployment before anyone even looks at the alerts.
The Simple Explanation
A genuine 24/7 SOC has four things a thin version does not: human analysts actively reviewing alerts around the clock, not just automated tooling; monitoring that spans both IT and OT where relevant, not only office workstations and email; a documented escalation path with clear authority for who can act and how fast; and actual response capability, meaning the ability to isolate a compromised device, not just send an email and wait for the customer to act on it.
Practical Checklist
- Are alerts reviewed by human analysts at 3 AM the same way they are at 3 PM
- Does coverage extend to OT-adjacent systems, or only standard IT endpoints
- Can the provider isolate a compromised device without waiting for customer approval
- Is there a documented, guaranteed time from detection to human review
- Does the service include active threat hunting, or only reactive alerting
- Can the provider produce a sample incident report showing real investigation depth
What You Can Do Now
Pull your current monitoring contract and check it against the questions above. Ask your existing provider directly what happens to an alert generated at 2 AM on a Sunday, and how long it actually takes for a human to look at it and take action.
When Outside Help Makes Sense
Building genuine round-the-clock coverage internally requires shift staffing that few manufacturers can justify for a security function alone. If your current coverage turns out to be alert forwarding rather than active monitoring and response, replacing it with a real MDR or SOC service is usually more effective and often not much more expensive.