SOC-as-a-service (SOCaaS) is a fully outsourced security operations model where a provider delivers 24×7 threat monitoring, detection, and response on a subscription basis—an alternative to building and staffing an in-house SOC that offers enterprise-grade coverage without the associated overhead.
Key takeaways
- SOC-as-a-service (SOCaaS) delivers cloud-based 24×7 monitoring, alert triage, incident response, and threat remediation on a subscription basis—giving organizations full SOC capabilities without the cost and complexity of building their own.
- SOCaaS providers with native integrations can turn on service in hours; in-house SOCs typically require months and cost well over $1M per year once salaries, tooling, shift coverage, and training are factored in.
- SOCaaS has a wider scope than MDR and typically covers all IT infrastructure—not just specific detection layers—with SLAs that span all security services rather than just response time.
For organizations that don’t have the time, staff, or budget to operate an in-house security operations center (SOC), a cloud-based SOC-as-a-service (SOCaaS) solution provides cybersecurity protection without the overhead. Outsourced SOCaaS providers can just watch monitoring tools, analyze activity, conduct triage on alerts, collaborate on incident response, and mitigate and remediate threats. In short, they offer the capabilities of a modern SOC—without the cost and headache of managing one. As with in-house SOCs, outsourced SOCs operate 24×7. SOC-as-a-service is typically available on a subscription and a pay-as-you-go basis.
SOCaaS may sound similar to managed detection and response (MDR) solutions, which provide remotely delivered SOC functions. Before comparing the two, it helps to understand what a security operations center actually is and how the traditional in-house model works—since SOCaaS is fundamentally defined by what it replaces. However, SOCaaS typically has a wider scope than MDR solutions; a SOCaaS solution usually manages the security of all of an organization’s IT infrastructure. Service level agreements (SLAs) may also vary. For SOCaaS solutions, SLAs usually cover all security services, while SLAs for MDR solutions may be limited to response time and incident resolution.
The distinction between SOCaaS and MDR is nuanced and worth examining carefully before choosing a model. Understanding how MDR compares to building an in-house SOC provides additional context for evaluating where SOCaaS fits relative to both options.
| SOCaaS | MDR | MSSP | |
|---|---|---|---|
|
What it covers |
All IT infrastructure and security operations | Detection and response across specific telemetry layers | A broad set of security tools and devices under management |
| Primary job | Run security operations on your behalf | Find, investigate, and contain threats | Keep security tools configured, running, and monitored |
| Scope of SLA | Typically spans all security services | Usually response time and incident resolution | Device uptime and ticket response |
| Detection approach | Provider’s SOC monitors across the full stack | Custom detection engineering and hypothesis-based threat hunting | Mostly vendor-supplied rules on management devices |
| What happens on a real alert | Provider triages, investigates, and coordinates remediation | Provider investigates and takes or recommends containment | Alert is forwarded to your team |
| Coverage | 24×7 | 24×7 analyst coverage | Often 24×7 monitoring, business-hours analysis |
| Best fit | Orgs with little or no internal security function | Orgs that need threats caught and stopped, not just routed | Orgs that need tools managed and compliance evidence produced |
| What you still own | Business context and risk decisions | Environment ownership and out-of-scope approvals | Investigation triage decisions, and remediation |
SOC-as-a-service—sometimes written SOCaaS or referred to as managed SOC-as-a-service—is basically a way to get all the benefits of a fully staffed security operations center, without the hassle of building or running one yourself.
Instead of hiring a dozen analysts, investing in a stack of security tools, and managing a 24×7 operation, you work with a team that already does all of that. You get continuous monitoring, alert triage, threat investigation, and incident response—around the clock—from folks who live and breathe security.
Why would you choose SOC-as-a-service?
There are a few reasons this model has taken off:
1. Cost. Running your own SOC can cost well over a million dollars a year—just to get to “good enough.” Between analyst salaries, tooling, shift coverage, and training, it adds up fast. And even then, many teams still face alert fatigue and burnout. Managed SOC-as-a-service gives you a different option.
2. Speed. It connects directly to the tools you already use—your SIEM, EDR, cloud platforms—and makes them more effective. You’re essentially plugging in a high-powered crew that knows how to investigate and respond. Fast.
3. Value. It’s not just about catching threats. A good SOC-as-a-Service provider helps you understand why an incident happened, how to prevent it next time, and how to improve your entire security posture.
What do you actually get from SOC-as-a-service?
With a well-run managed SOC-as-a-service, you’ll typically see benefits like:
- 24×7 coverage (without hiring a night shift)
- Faster detection and response
- Fewer false positives and distractions
- More time for your team to focus on strategic work
Plus, it’s flexible. If your business changes or your threat landscape evolves, you can scale the service up or down—without begging for extra headcount or budget.
Is it right for you?
If building your own SOC isn’t feasible—or if your current setup feels like duct tape and hope—SOC-as-a-service might be the move.
This isn’t just outsourcing. It’s about getting the right people in your corner to help you stay ahead of threats, without drowning in alerts or blowing your budget.
Why outsource SOC services?
Cybersecurity is now complex enough that it requires (human and virtual) eyes on network activity around the clock. Security also demands insights to help the SOC team triage, investigate, and respond to threats. For any growing organization—with more and more data sources and expanding attack surfaces—bringing in outside expertise may be necessary. Especially when security posture has to mature right alongside a growing business, SOCaaS can quickly become the right choice.
The other reason to turn to SOCaaS is the fact that operating an in-house SOC is costly in terms of people and technology. And after people, technology has the biggest impact on a SOC’s usefulness. Even with the proper technology to provide visibility, detection, and investigative capabilities, there will inevitably be holes in defenses. With SOC-as-a-service, organizations can bypass the challenges of budget and staffing, while maintaining 24×7 security right from the start. Then, the best in-house security people can focus on the risks that matter most to the organization.
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Who uses SOC-as-a-service?
SOC-as-a-service can provide security operations—such as analysis of SIEM alerts and security-related management of networks, endpoints, applications, websites, and databases—for organizations that have little or no in-house security capability. In addition, SOCaaS can work with organizations that already have some level of in-house security. In these cases, it supplements an internal SOC with additional cybersecurity skills and tools.
Benefits of SOC-as-a-service
Buying a bunch of the latest and greatest security tech is one approach to strengthening security, but a few years down the road, those security tools can be simply gathering dust while teams are overwhelmed with useless alerts. The SOC-as-a-service model works by significantly expanding the in-house team’s scope of knowledge—without blowing the budget.
Stronger security
In-house security teams face the daunting task of keeping attack surfaces secure 24×7, regardless of staffing or budget constraints. These SOC teams struggle to protect business assets amid talent shortages and constant pressure from the C-suite, leaving little time for strategic security improvements.
SOC-as-a-Service (SOCaaS) provides a solution by triaging, investigating, and responding to threats, thus freeing up valuable time for in-house security teams. This service offers insights to enhance security defenses and, through automation, improves alert triage, speeds up detection, and accelerates remediation of cyberattacks. By leveraging SOCaaS, the burden on in-house security teams is significantly reduced, allowing them to focus on higher-level strategic projects.
Faster onboarding
A SOC-as-a-service with native integrations can turn on a service in just hours. The ability to quickly integrate with existing cybersecurity and the rest of the tech stack is at the top of the list of desired SOCaaS features. Ideally, the integration does not require additional hardware, which the organization might not have time to install or manage.
Reduced “alert fatigue”
Cybercriminals are responsible for a content stream of attacks, setting off a storm of alerts in the world’s SOCs. It’s the job of security teams to review and triage such alerts, a process that can exacerbate fatigue, burnout, and staff turnover. As a result, sleeper attacks that might otherwise be detected before damage is done are allowed to proceed because there isn’t enough in-house expertise or time. SOC-as-a-service can break the alert fatigue cycle, and in the process, strengthen security.
Expertise
With SOC-as-a-service, organizations gain access to cybersecurity experts who can shape future security postures. For example, SOCaaS teams can guide clients in how to get more mileage out of their current security tech stack—such as advising the in-house security team on building cyber resilience into a security program. Ongoing communication between in-house and SOC-as-a-service teams can help address an organization’s unique cybersecurity challenges.
Flexibility and scalability
If an organization’s needs change, it doesn’t need to seek out more hard-to-find talent or beg for (much) more budget. SOC-as-a-service can be scaled to meet the changing needs, or to focus on unique challenges. The services provided by managed SOC solutions can be scaled to meet the changing demands of the company.
Expel’s take
SOCaaS and MDR are often used interchangeably, but the meaningful distinction is scope: SOCaaS typically covers all IT infrastructure, while MDR focuses more narrowly on threat detection and response with tighter SLAs. What both models share is the core value proposition—bypassing the $1M+ annual cost and 12–18-month ramp time of building an in-house SOC while still getting 24×7 coverage from day one. The best providers integrate directly with your existing stack via API with no additional hardware, so you’re monitoring on day one, not month six. The real question isn’t SOCaaS vs. in-house—it’s what you need your internal team to focus on that a managed provider shouldn’t be doing for you.
Frequently asked questions (FAQs)
How much does SOC-as-a-service cost?
SOCaaS is sold on subscription, and pricing usually keys off one of three things: number of endpoints or users, volume of data ingested, or a flat tier tied to a defined scope of coverage. Breadth drives the number more than anything else, since a provider covering your full infrastructure is pricing a larger surface than one covering a few telemetry sources. Ask what falls outside the subscription—incident response hours, onboarding new environments, and log retention are the usual places unplanned spend appears.
Is SOC-as-a-service the same as a managed SOC?
In practice, yes—the terms are used interchangeably, and providers market the same service under both names. “Managed SOC” tends to show up when a provider is emphasizing that they’re operating a security operations center for you; “SOCaaS” emphasizes the subscription delivery model. Neither term is standardized, so the label tells you less than the scope of services does. Read the service description rather than the name.
Can SOC-as-a-service work alongside an in-house security team?
It’s one of the more common arrangements. Teams that already have security staff use SOCaaS to cover the hours and surfaces they can’t reach, while internal people handle architecture, risk decisions, and work that needs institutional knowledge. The split usually falls along tiers—the provider takes frontline monitoring and triage, the internal team takes deeper investigation and strategy. What matters is agreeing up front which decisions the provider makes alone.
Does SOC-as-a-service replace your SIEM or EDR?
Generally, no. Most SOCaaS providers integrate with the security tools you already own rather than asking you to rip them out, which is part of the appeal—your existing investment keeps working and gains a team operating it. Some providers supply technology where you have gaps. The question to ask any provider is what they bring versus what you’re expected to provide, and what the combined cost looks like.
What should you look for in a SOC-as-a-service provider?
Start with response authority: what the provider can do without asking you, and what waits for approval. Then ask how detections get built and maintained, because vendor-default rules age badly and a SOC running stale content is just a more expensive alert queue. Check whether you can see work in progress or only a monthly report. And confirm what happens at the edges of scope—a provider covering “all your infrastructure” should be able to say precisely what that includes.
What’s the difference between SOC-as-a-service and MDR?
Scope. SOCaaS typically covers all of an organization’s IT infrastructure and its SLAs span the full range of security services. MDR is narrower and deeper, focused on detection and response across specific layers, with SLAs usually built around response time and incident resolution. The comparison table above breaks this down further. Neither is inherently better—the right one depends on whether you need a security operation run for you or a specialist function added to one you already have.
