SOC outsourcing vs in-house: should you build or buy?

A Security Operations Centre detects, analyses and responds to cyber threats, and setting one up has become a natural step for organisations as attacks grow in frequency and complexity. In the UK government’s most recent figures, half of businesses (50%) and around a third of charities (32%) reported a breach or attack in the past year. Once the need for a SOC is established, the question becomes how to resource it — and that’s where build-versus-buy comes in. Rather than list the pros and cons of each option separately (which mostly repeats the same points in mirror image), the sections below compare the two on the factors that actually decide it.

The factors that decide it

Building in-house gives you the most direct control: your own team, immediate response, and a SOC you can tailor precisely to your systems, processes and priorities, with full oversight and accountability. Outsourcing trades some of that direct control for reach and expertise — you set the strategy and the provider runs the operation to it, which makes the quality of the relationship and the clarity of your agreements matter more. If hands-on control is non-negotiable, in-house has the edge; for most organisations, well-defined governance gives them enough control without the overhead.

This is the factor that tips most decisions. An in-house SOC carries a substantial upfront and ongoing cost — tooling, infrastructure and a full team — and it grows as your estate and workload do. A managed service converts most of that into a single, predictable operating cost, with no recruitment, infrastructure or setup burden, and lets you use advanced tooling without buying it outright. Pricing usually follows the level of service and how you’re counted — per user, per device, by data volume, or a tiered subscription. Our guide to what a managed SOC costs breaks the numbers down.

The cybersecurity skills shortage makes this one of the hardest parts of building in-house. Skilled analysts, incident responders and threat hunters are scarce, expensive and in constant demand — and the high-pressure nature of SOC work drives burnout and turnover, which leaves gaps in specialist areas such as forensics and proactive threat hunting. Outsourcing gives you immediate access to a full team of specialists whose skills stay current, without the recruitment and retention battle, and to cutting-edge tooling that’s often too costly to justify in-house.

Attacks don’t keep office hours, so round-the-clock monitoring is a baseline expectation rather than a luxury. Delivering it in-house means staffing analysts across shifts, every day of the year — expensive to resource, and demanding on a small team, with threats going unnoticed out of hours if cover is thin. With a managed provider, 24/7/365 coverage is standard: dedicated teams monitoring and responding in real time, at a fraction of what continuous in-house cover costs to run.

Standing up an in-house SOC takes time and continuous investment — tooling, integrations, training — and scaling it means re-hiring and re-tooling. A managed service is faster to deploy and easier to flex: you can adjust the level of service as your needs change, without major infrastructure upgrades. That suits fast-growing organisations, or those expanding into new markets, and it frees your internal team to focus on the core business rather than running the operation.

For some organisations, keeping data and monitoring entirely within their own infrastructure is a genuine advantage — a level of control that matters where data sovereignty or sector rules are strict, and that can be run in line with GDPR, ISO 27001 and similar standards. Outsourcing means your data is handled by an external partner, which is entirely workable but puts the emphasis on clear data governance, defined access and strong contractual safeguards. Where your data must demonstrably stay in-house, that points to building; otherwise it’s a question of holding a provider to the right standards.

In-house vs outsourced at a glance

When does building in-house make sense?

Outsourcing suits most organisations, but not all. Building and running your own SOC can be the right call when several of these are true:

For most others — particularly organisations without an established security team, or those growing quickly — the cost, coverage and expertise advantages of a managed service outweigh the loss of some direct control.

How to decide

There’s no universal answer; the right one falls out of a handful of questions:

Answer those honestly and the build-or-buy decision usually answers itself — because the goal is not to own a SOC or to outsource one, but to have the right level of protection for where your business is now. If you’re still weighing it up, our main guide helps you work out how much SOC capability you actually need, and our guide to choosing the right partner covers what to look for if you decide to buy.

Common questions