Cyberattacks don't follow office hours. While your organization sleeps, attackers are often at their most active—precisely because they know there is less oversight. A Security Operations Center (SOC) is the answer: a team and technical infrastructure that keep a constant eye on your IT environment, identifying threats and intervening before damage occurs.
In this article, we explain exactly what a SOC does, how it relates to a SIEM system, what it costs to build one yourself, and when SOC as a Service is a more realistic choice.
What exactly does a Security Operations Center do?
A SOC combines three things:
- People;
- processes;
- Technology;
The team—usually composed of analysts at various levels, threat hunters, and a SOC manager—continuously monitors the systems within your IT environment: servers, endpoints, network traffic, cloud applications, and identities.
In practical terms, it comes down to four tasks:
- Monitoring. Log data from the entire environment is collected and analyzed for anomalies.
- Detecting. Suspicious patterns are identified, often using a combination of fixed detection rules and behavioral analysis.
- Investigating. An analyst assesses whether a signal is a false alarm or an actual incident.
- Responding. In the event of a confirmed threat, the team intervenes: isolating, remediating, and breaking the attack chain.
The goal is not just to stop attacks, but to minimize the time between a breach and its discovery. Organizations without active monitoring typically take months to notice an attack; with a SOC watching around the clock, that is reduced to hours in most cases.
SOC vs. SIEM: what is the difference?
These two terms are often used interchangeably, but they are not synonyms.
A SIEM (Security Information and Event Management) is the technology: the system that collects, correlates, and visualizes log data from your entire environment. A SOC is the organization around it — the people who actually use that SIEM to make decisions and take action.
In short: a SIEM without a SOC only generates alerts that no one looks at. A SOC without a SIEM lacks the overview needed to monitor anything. They are complementary, and the most effective security strategies combine both.
Build your own SOC or opt for SOC as a Service?
This is the question most organizations get stuck on. Setting up your own SOC means: hiring (and retaining — this is a tight labor market) qualified analysts, organizing 24/7 coverage through shift work, implementing and maintaining a SIEM, and continuously investing in tooling that evolves with the threats. For most mid-market organizations, that is an investment that is disproportionate to what needs to be protected.
SOC as a Service (SOCaaS) is the outsourced alternative: an external party provides the same monitoring, detection, and response, shared across multiple clients. This makes costs predictable and the level of expertise accessible to organizations that could never build or maintain a full-fledged team themselves.
In practice, the trade-off comes down to three questions:
- Do you have the scale and budget to organize qualified 24/7 personnel yourself?
- Is continuous monitoring a core activity, or a prerequisite that you would rather outsource to a specialist?
- How quickly do you need to be able to meet compliance requirements that mandate active detection?
For most organizations outside of the largest enterprises, the answer leans in favor of SOC as a Service — not because an in-house SOC wouldn't work, but because the setup time, personnel costs, and maintenance burden rarely outweigh an outsourced solution of a comparable level.
Why a SOC increasingly feels mandatory: NIS2 and the Cyber Security Act
With the Cyber Security Act — the Dutch implementation of the European NIS2 directive — continuous detection and monitoring is no longer an optional choice for a growing group of organizations, but a compliance requirement. Companies that fall under the law must be able to demonstrate that they identify and respond to incidents in a timely manner.
A SOC — whether built in-house or purchased as a service — is the most direct way to meet that obligation. It National Cyber Security Centre (NCSC) advises organizations setting up a SOC to start small and take integration into existing workflows seriously, rather than treating a SOC as an isolated project. This is also why we have seen a sharp increase in demand for SOC as a Service recently: organizations that never considered monitoring themselves are now being required to do so.
How do you choose the right approach?
A few rules of thumb we use in practice when advising clients:
- Small to medium-sized, no in-house security team? SOC as a Service is almost always the more realistic path.
- Complex, highly regulated environment (industry, healthcare, financial sector)? Consider a hybrid model: in-house incident response, outsourced monitoring.
- Enterprise with an existing security team? An in-house SOC can add value, provided there is sufficient scale to justify the investment.
Start small, measure the results, and build from there — a SOC is a means to manage risk, not an end in itself.
How Aumatics can help
Aumatics combines managed IT and security services with SOC operations tailored to the realities of manufacturing companies, government organizations, healthcare providers, and financial services — environments where compliance and continuity are not optional. Curious about whether SOC as a Service, a hybrid model, or another approach best suits your organization? Contact us for a no-obligation consultation.
