An in-house SOC gives an organisation closer control over its security operations, but that control comes with the responsibility of hiring analysts, maintaining security tools, and covering every shift. Outsourcing shifts much of that operational workload to a specialist provider, making it a practical option for businesses that need continuous monitoring but cannot sustain a full SOC team internally. The decision comes down to how much expertise and control the organisation needs, and whether it has the resources to maintain them in-house.
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Key Takeaways
- In-house SOCs offer greater operational control: Organisations manage their own analysts, security tools, investigations, and incident response, but must fund staffing, training, infrastructure, and continuous coverage.
- Outsourced SOCs provide monitoring and specialist expertise without building a full internal team: An MSSP can deliver 24/7 threat detection, investigation, and response, subject to agreed service levels, escalation procedures, and service scope.
- SOC costs depend on staffing, technology, and coverage requirements: In-house budgets must account for salaries, recruitment, licences, and ongoing operations, while outsourced costs depend on service scope, monitoring needs, and contractual commitments.
- Vendor risk remains a critical consideration when outsourcing security operations: Organisations must assess data access, data residency, provider accountability, incident escalation, service quality, and the portability of security records and integrations.
- The right SOC model depends on organisational needs, not just cost: In-house SOCs suit organisations requiring direct oversight, outsourced SOCs provide external operational capacity, and hybrid SOCs combine internal decision-making with provider-led monitoring or specialist support.
What is an In-house SOC?
An in-house Security Operations Center is a dedicated internal unit that monitors and defends an organisation's digital assets from cybersecurity threats, offering around-the-clock surveillance and protection. An in-house SOC is integrated within the organisation, leveraging its security staff and technology for more direct control over security strategies and the ability to tailor solutions to specific organisational needs.
This setup is ideal for entities with intricate IT infrastructures or sensitive data necessitating constant, specialised security oversight. For organisations valuing tight security control and willing to invest in the necessary resources, an in-house SOC provides a robust framework for cybersecurity defense.
What is an Outsourced SOC?
An outsourced Security Operations Center is a service model in which organisations partner with third-party providers to manage their cybersecurity operations, including threat detection, incident response, and continuous security monitoring. This form of outsourced security enables businesses to access specialised expertise, advanced security technologies, and round-the-clock monitoring without building and maintaining a fully staffed internal SOC.
However, relying on an external SOC provider also introduces considerations around data privacy, operational control, and service-level agreements (SLAs) to ensure the provider's services align with the organisation's specific security requirements.
Also Read: SOC as a Service (SOCaaS): What It Is, What's Included and How to Choose
What are the Key Differences Between In-House SOC and Outsourced SOC?
An in-house SOC gives an organisation direct control over security operations but requires internal staff and technology investment. An outsourced SOC provides monitoring and security expertise through an external provider.
| Factor | In-House SOC | Outsourced SOC |
|---|---|---|
| Cost profile | Generally, higher fixed costs for staffing, tools, training, and infrastructure. | Generally, lower upfront investment, with recurring fees based on service scope. |
| 24/7 monitoring | Requires enough internal staff to cover shifts, leave, and handovers. | Provider can supply continuous coverage as specified in the contract. |
| Setup time | Requires recruitment, technology deployment, and process development. | Often faster to establish, depending on onboarding and integration complexity. |
| Operational control | Direct control over detection priorities, investigations, and response workflows. | Control is shared according to the contract and agreed response authority. |
| Security expertise | Depends on the organisation’s ability to recruit and retain specialists. | Provides access to the provider’s available analysts and specialist capabilities. |
| Customisation | Processes can be built around internal systems and business requirements. | Customisation depends on provider flexibility and service scope. |
| Scalability | Expansion may require additional staff, tools, and training. | Coverage can be adjusted subject to provider capacity and contract terms. |
| Vendor dependency | Relies primarily on internal teams and technology suppliers. | Adds dependence on provider performance, service levels, and transition arrangements. |
Neither model is universally better. The right choice depends on the organisation’s security requirements, internal capabilities, regulatory obligations, and need for direct control.
What are the Advantages & Disadvantages of Running an In-House SOC?
An in-house SOC lets an organisation decide which alerts need investigation, how incidents are handled, and when its security team should take action. Analysts also build first-hand knowledge of internal systems, user behaviour, and business-critical assets. The challenge is sustaining that expertise across shifts while keeping security tools updated, training staff, and filling vacancies without leaving gaps in monitoring.
Advantages and disadvantages of running an in-house SOC:
| Advantages of an In-House SOC | Disadvantages of an In-House SOC |
|---|---|
| Manage detection priorities, investigations, and response procedures internally. | Requires ongoing investment in staff, security tools, infrastructure, and training. |
| Build detailed knowledge of internal systems, users, and business risks. | Recruiting, retaining, and training skilled analysts can be challenging. |
| Maintain direct control over security data access, storage, and handling. | Expanding coverage or adding specialist skills may require more staff and technology. |
| Work directly with IT teams and business stakeholders during investigations. | Requires sufficient staff, shift planning, and leave coverage for continuous monitoring. |
What are the Advantages and Disadvantages of Outsourcing a SOC?
Outsourcing a SOC gives an organisation access to external analysts, threat intelligence, and established monitoring processes without having to recruit and manage an entire security team, including outsourced security operations from Eventus. However, the value depends on what the provider actually delivers, how quickly incidents are escalated, how well its analysts understand the organisation’s environment, and the criteria involved in choosing a virtual SOC provider.
The same arrangement can create blind spots if responsibilities, communication channels, and service expectations are not clearly defined.
Benefits and drawbacks of outsourcing a SOC:
| Advantages of an Outsourced SOC | Disadvantages of an Outsourced SOC |
|---|---|
| Access provider threat intelligence to support the detection of emerging threats. | Communication gaps can delay decisions or create misunderstandings about security priorities and response responsibilities. |
| Gain support for compliance requirements through monitoring, investigation, and reporting, depending on the service scope. | Dependence on a third-party provider can limit direct operational control. Organisations should also evaluate SOC services pricing against the monitoring coverage, incident response capabilities, and service levels included in the contract. |
| Access specialist analysts and established incident investigation and response processes. | Service quality depends on the provider’s expertise, processes, staffing, and adherence to agreed service levels. |
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Need 24/7 security monitoring without building an in-house SOC? Explore Eventus Security’s managed SOC services to assess the right fit for your organisation. |
What Are the Vendor Risks of Outsourcing a SOC Compared with Running One In-House?
Outsourcing a Security Operations Center introduces third-party risks that organisations must evaluate alongside the operational risks of managing security internally. An outsourced SOC provider may require access to sensitive security logs, infrastructure details, and incident data, making data handling, access controls, and contractual safeguards critical considerations.
Key risks include:
- Data exposure: Sharing security telemetry with an external provider can create privacy and data residency concerns if data handling, storage locations, and access permissions are not clearly defined.
- Limited operational control: Organisations may have less direct control over investigation priorities, escalation decisions, and response timelines unless these responsibilities are explicitly agreed upon.
- Vendor dependency: Switching providers can be difficult if detection rules, incident records, integrations, and operational knowledge are not portable.
- Service-level gaps: Unclear service-level agreements (SLAs), escalation thresholds, or incident response responsibilities can delay action during a security incident.
An in-house SOC avoids some third-party dependencies but introduces internal risks, including staff shortages, skills gaps, employee turnover, and reliance on internally managed tools. Organisations should compare both models based on data governance, response accountability, staffing resilience, and the ability to maintain continuous monitoring. Outsourcing does not transfer ultimate responsibility for the organisation's security risk.
Why Might a Business Choose an Outsourced SOC Over an In-House SOC?
Businesses might opt for an outsourced Security Operations Center over an in-house SOC for several compelling reasons:
- Cost Efficiency: Outsourcing SOC operations can be more budget-friendly, allowing businesses to access high-quality cybersecurity services at a fraction of the cost of building and maintaining an in-house SOC.
- Access to Expertise: An outsourced SOC provides immediate access to a team of security experts and analysts with specialised knowledge, bringing experience from working across different sectors and offering insights and skills that might not be available internally.
- Advanced Security Tools: Partnering with an MSSP for SOC services means businesses can leverage advanced security tools and technologies, such as SIEM systems, without the direct cost of purchasing and managing these tools in-house.
- Scalability: An outsourced SOC solution can quickly scale up or down based on the organisation's changing needs, providing flexibility that is hard to achieve with an in-house team.
- Focus on Core Business Functions: By outsourcing SOC, businesses can focus on their core operations without the distraction of managing a complex cybersecurity program, allowing companies to allocate their internal resources more efficiently.
- Continuous Monitoring and Support: Outsourced ensure that cyber incidents are detected and responded to promptly, any time of the day.
- Rapid Deployment and Integration: Setting up an in-house SOC requires significant time and effort, whereas an outsourced SOC can be rapidly deployed and integrated into existing IT environments.
Also Read: Learn why CISOs choose SOCaaS in The Future of SOC as a Service: Trends Every CISO Should Watch
What Are the Considerations and Impacts of Outsourcing Cybersecurity to an MSSP?
Outsourcing cybersecurity services to a Managed Security Service Provider allows organisations to access specialised expertise, continuous monitoring, and advanced security capabilities without the cost of building and maintaining every function internally. An outsourced cybersecurity service can include SOC monitoring, threat detection, incident response, and security analysis, depending on the provider's scope.
This model can convert some fixed operating expenses into variable service costs while supporting changing security requirements. However, organisations must assess data handling, regulatory obligations, integration with existing IT systems, service-level agreements, and incident escalation responsibilities before selecting a provider.
Choosing an MSSP whose capabilities, reporting processes, and service commitments align with the organisation's security objectives is essential to managing third-party risk and maintaining effective security operations.
Also Read: MDR vs SOC: Key Differences, Benefits and How to Choose
When Should a Business Choose an In-House, Outsourced, or Hybrid SOC?
When businesses consider building an in-house Security Operations Center or outsourcing it to a Managed Security Service Provider, the choice hinges on various strategic factors, including the need for a SOC tailored to your business.
In-House SOC Considerations
An in-house SOC suits organisations that need direct control over security operations, have specialised internal teams, and require close oversight of sensitive systems or security data. Internal analysts can build detailed knowledge of the organisation's infrastructure and business risks. However, maintaining continuous coverage requires sufficient staffing, ongoing training, security technology investments, and plans for employee turnover and skills shortages.
Outsourced SOC Considerations
An outsourced SOC suits organisations that need continuous monitoring and specialist security expertise without building and staffing an entire SOC internally. An MSSP can provide access to established detection processes, security tools, and analysts who investigate threats and escalate incidents according to agreed service levels. Before outsourcing, businesses should assess data handling practices, response commitments, provider expertise, and the procedures for accessing incident records or transitioning to another provider.
Hybrid SOC considerations
A hybrid SOC suits organisations that want to retain responsibility for critical security decisions while using an external provider to extend monitoring and response capabilities. For example, an internal team may manage security strategy, business-specific investigations, and incident approval, while an MSSP provides 24/7 monitoring, alert triage, and specialist threat hunting. This model requires clearly divided responsibilities, integrated security tools, consistent escalation procedures, and regular coordination between internal staff and the provider. Without these arrangements, duplicated work or unclear ownership can delay incident response.
How Can Eventus Security Support Your SOC Requirements?
Choosing between an in-house and outsourced SOC depends on your organisation’s security requirements, internal expertise, and ability to maintain continuous monitoring. Eventus Security delivers AI-Driven SOC as a Service powered by the Eventus Platform, combining a Security Data Lake, Hyper-XDR, threat intelligence, and security automation with analyst-led monitoring, investigation, and response.
Eventus Security supports SOC operations through:
- 24/7 Security Monitoring: Eventus provides continuous monitoring to identify suspicious activity, investigate alerts, and escalate potential threats.
- AI-Powered Threat Detection: The Eventus Platform correlates security data across multiple sources to help analysts identify threats and prioritise relevant alerts.
- Threat Hunting and Investigation: Eventus analysts investigate suspicious activity and proactively hunt for threats that may evade routine detection.
- Incident Response Support: Eventus supports incident investigation, containment, and remediation activities to help organisations respond to security incidents.
- Managed SOC Services: Eventus combines security technology with human oversight, giving organisations access to managed security operations without having to build and staff an entire SOC internally.
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Contact Eventus Security to discuss how its managed SOC capabilities can support your organisation’s security monitoring and response requirements. |
FAQs
What is the difference between SIEM and an in-house SOC?
A Security Information and Event Management (SIEM) system collects and analyses security logs to identify suspicious activity, while an in-house Security Operations Center (SOC) is the internal team responsible for monitoring alerts, investigating threats, and coordinating incident response. A SIEM is a technology an in-house SOC can use; deploying one does not eliminate the need for people and response processes.
What is an outsourced CISO, and how does it differ from an outsourced SOC?
An outsourced Chief Information Security Officer (CISO) provides strategic security leadership, including risk governance, security policies, regulatory oversight, and executive reporting. An outsourced SOC delivers operational security monitoring, threat investigation, and incident response. An organisation may use both services, with the CISO setting security priorities and the SOC executing day-to-day detection and response activities.
How many analysts does a 24/7 SOC need?
A 24/7 SOC requires approximately five to six full-time analysts to sustain one continuously staffed analyst position, assuming a typical 40-hour working week and allowing for leave, training, and other absences. Two analysts on duty at all times would require approximately 10–12 analysts. Actual staffing depends on shift patterns, alert volumes, automation, incident workload, and the need for dedicated shift leads and specialist responders.
What does an in-house SOC cost to build and run?
The cost of building and running an in-house SOC depends on staffing levels, operating hours, security tool licences, infrastructure, threat intelligence subscriptions, training, and incident response requirements. A 24/7 operation also needs sufficient personnel to cover every shift, leave, and staff turnover. Organisations should estimate initial setup costs separately from recurring annual expenses and include recruitment, tool renewals, ongoing training, and capacity for major incidents.
Should businesses manage IT and security in-house or outsource them?
Businesses should manage IT and security in-house when they need direct oversight, have specialised internal teams, and can support the ongoing costs. Outsourcing suits organisations that need external expertise, round-the-clock monitoring, or additional capacity without hiring for every role. A hybrid approach allows businesses to retain control of critical systems while outsourcing specialised security operations.
How do in-house and outsourced SOCs compare in cost?
An in-house SOC requires spending on analyst salaries, recruitment, training, security tools, infrastructure, and 24/7 shift coverage. An outsourced SOC typically replaces much of this direct operating expenditure with service fees based on the provider's scope, monitoring requirements, and response commitments. The actual cost difference depends on the organisation's scale, required capabilities, and existing security investments.
How do in-house and outsourced SOCs differ in control, expertise, and response times?
An in-house SOC gives an organisation direct oversight of investigations, security priorities, and response decisions, while an outsourced SOC provides access to a provider's analysts, tools, and established processes. Response times depend on staffing, alert quality, escalation rules, and incident complexity rather than the operating model alone. Organisations should compare documented response commitments and escalation procedures instead of assuming either model is automatically faster.
