How to Get 24/7 Security Monitoring Without Building a SOC

What "24/7 monitoring" really has to deliver

Every board wants the same assurance: if an attacker moves against us at 3 a.m. on a holiday weekend, someone qualified sees it and stops it. That is the real deliverable — not a dashboard, not a pile of alerts, but detection and response that never sleeps. The moment you price that outcome honestly, the build-versus-buy decision looks very different from the one in the vendor slide deck.

The staffing math nobody budgets for

There are 168 hours in a week and 8,760 in a year. One analyst working a normal 40-hour schedule covers roughly 1,800 to 1,900 productive hours annually once you subtract vacation, holidays, sick time, training, and administrative work. Divide 8,760 by 1,900 and you get the uncomfortable number: it takes about 4.5 full-time analysts just to keep a single seat continuously staffed.

That is one person watching at all times — with no depth, no second opinion, and no coverage the week someone quits. A functioning security operations center needs more than a lone seat:

• Tier 1 to triage and validate alerts.
• Tier 2 and 3 to investigate confirmed incidents and hunt.
• A lead or manager to run process, tune detections, and own escalations.
• Overlap at shift handoffs so context isn't lost at 6 a.m.

Realistically that is 6 to 10 people for a small but credible 24/7 operation. In the US, loaded salaries — benefits and overhead add roughly 30 to 40 percent on top of base — put tier-1 analysts around $90k to $120k all-in, senior analysts and engineers well above that, and a SOC manager higher still. Labor alone lands comfortably in the high six figures to over $1M per year before a single tool is licensed.

The tooling and threat-intel bill

People need a platform to work on, and that platform is not cheap:

• SIEM licensing, usually priced on data volume or events per second — easily six figures once you are ingesting endpoint, network, identity, and cloud logs. Getting value out of a SIEM is its own discipline.
• EDR and XDR, SOAR for automation, and a case-management system.
• Threat intelligence feeds and ISAC memberships — plus the analyst hours to operationalize them, which is where most intel spend quietly evaporates.
• Log retention and storage, which compliance frameworks often push to a year or more.

None of this is one-time. Licenses renew, data volumes grow, and detections need constant tuning or they drift into noise.

The retention problem is the real killer

Even if you fund all of the above, you still have to keep the team. SOC analyst roles carry some of the highest burnout and turnover in the industry — night shifts, alert fatigue, and repetitive triage push tenure down and attrition up. Every departure costs you recruiting, and worse, months of ramp time before a replacement understands your environment well enough to be trusted with a containment decision. A SOC that loses two analysts in a quarter is no longer a 24/7 SOC; it is a coverage gap with a job posting.

Why alerts-only tools become shelfware

Plenty of teams try to shortcut the problem by buying tooling and skipping the staffing. This is exactly how expensive platforms turn into shelfware. A detection engine that fires an alert at 2 a.m. accomplishes nothing if no qualified human triages and acts on it until Monday.

The math that matters here is time. Adversary "breakout time" — how long from initial foothold to lateral movement — has been measured at roughly an hour on average, with the fastest intrusions moving in minutes. IBM's Cost of a Data Breach research consistently shows that the longer a breach goes unidentified and uncontained, the more it costs, with the global average hovering near $4.9M. An alert that sits unread over a weekend is, functionally, no detection at all. The value was never the alert — it was the response.

In-house vs. MSSP vs. MDR

Three models, three very different outcomes:

• In-house SOC. Maximum control and the deepest institutional context, but the highest cost, the longest time to stand up (12+ months to real maturity), and full exposure to the retention risk above. It makes sense at large scale or under strict data-sovereignty constraints.
• Traditional MSSP (alert-forwarding). A managed provider watches your SIEM and forwards alerts — but the response is still yours. You have outsourced the monitoring and kept the hard part. This narrows, but does not close, the 2 a.m. gap.
• Managed detection and response (MDR). The provider detects and responds, investigating, containing, and guiding remediation around the clock under defined SLAs. You get the outcome — a stopped attacker — rather than a queue of tickets.

The distinction between the second and third options is the whole game. Managed detection and response is defined by what happens after the alert fires.

What good MDR should include

If you evaluate providers, hold them to outcomes, not activity. A credible MDR service should offer:

1. 24/7 human-led investigation, not just automated alerting.
2. Response actions — host isolation, account disablement, blocking — performed for you or executed on your approval within minutes.
3. Defined SLAs for time-to-acknowledge and time-to-respond, in writing.
4. Transparency into the same telemetry and case detail the analysts see, so you are never locked out of your own security data.
5. Threat hunting and detection tuning included, so coverage improves instead of decaying.
6. A named escalation path into your team, backed by a documented incident response plan for major events.

The bottom line

For a minority of very large organizations, an in-house 24/7 SOC is the right answer. For everyone else, the honest cost math — 6 to 10 specialists, six-figure tooling, and a permanent retention treadmill — makes buying the outcome the better decision. The goal was never to own a SOC. It was to make sure someone qualified is watching and able to act, every hour of every day.

If you want round-the-clock coverage without standing up a team from scratch, that is exactly what intSignal's managed detection and response delivers. When you are ready, talk to our security team about the right model for your environment.