The hybrid model: Combining IT outsourcing with outsourced SOC services
- Evelyn Carter
- Aug 10
- 8 min read
Enterprises do not have to choose between maintaining an internal IT team and outsourcing all cybersecurity operations. A more practical approach is combining IT outsourcing and cybersecurity through a hybrid model: the IT team continues to manage day-to-day systems, user support, and technical changes, while an outsourced Security Operations Center (SOC) provides specialized security monitoring, threat detection, and incident response support.
The effectiveness of this model does not depend on how many responsibilities are outsourced. What matters is whether IT and SOC responsibilities are clearly defined, the right operational context is shared, and both teams can coordinate quickly when a security incident occurs.
When designed properly, an outsourced SOC does not replace the existing IT function. The two teams provide different but complementary capabilities: IT keeps the technology environment stable and operational, while the SOC maintains security visibility and investigates potential threats.
1. How does combining IT Outsourcing and cybersecurity optimize the corporate IT department?
In many enterprises, IT teams are responsible for a wide range of activities at the same time: user support, account administration, servers, endpoints, networks, software deployment, troubleshooting, backups, system updates, and security-related issues.
As the technology environment grows, IT teams may also need to deal with logs and alerts generated by firewalls, endpoints, identity systems, cloud platforms, email security tools, and other infrastructure.
When the same team is expected to keep systems available while continuously monitoring and investigating security alerts, resources can quickly become stretched.
This is where the hybrid model creates value.
IT teams typically focus on system availability and operational efficiency: Are systems running properly? Can employees work without disruption? Are technical changes being implemented correctly?
SOC teams focus on security monitoring and threat detection: Which activities are unusual? Which alerts require investigation? Is there evidence that an account has been compromised? What could the business impact be?
Therefore, combining IT outsourcing and cybersecurity does not mean handing the entire IT environment to an external provider. It means assigning each responsibility to the team best equipped to manage it.
Even enterprises with an established internal IT team do not necessarily need to increase headcount for every new operational requirement. The same principle applies when an organization already has an internal IT team but still uses outsourced IT Helpdesk services: the objective is to fill capability gaps, not replace the existing team.
1.1 What should internal IT or an IT Outsourcing provider continue to manage?
The IT function should generally retain control over activities that require a deep understanding of the organization's technology environment and business operations.
Typical responsibilities include:
Managing servers, endpoints, networks, and applications.
Administering user accounts and access rights.
Providing user support.
Managing system configurations.
Deploying patches and technical changes.
Managing backup and recovery within the agreed scope.
Providing operational context to the SOC.
Implementing remediation after an incident has been confirmed.
Providing operational and business context is particularly important.
For example, a SOC may identify a login from a location or device that has never been associated with a particular account. Security data may indicate unusual behavior, but the IT team may know that the employee is traveling or has recently received a new device.
Without this context, the SOC may have difficulty distinguishing legitimate activity from a potentially compromised account.
1.2 What should an Outsourced SOC manage?
An outsourced SOC provides specialized security monitoring and analytical capabilities that a general IT team may not be able to maintain continuously.
Depending on the service scope, the SOC may be responsible for:
Collecting and monitoring security logs.
Monitoring alerts from endpoints, firewalls, identity platforms, and cloud environments.
Analyzing and prioritizing security alerts.
Determining incident severity.
Investigating suspicious activity.
Correlating events across multiple security systems.
Escalating incidents to the appropriate contacts.
Recommending containment and remediation actions.
Tracking incident response progress.
Reporting security trends and priority risks.
For enterprises that require continuous monitoring but do not want to build and operate a complete Security Operations Center internally, SOC 24/7 services can provide a dedicated security layer alongside the existing IT team.
2. How should the IT and SOC collaboration workflow be designed?
An outsourced SOC only delivers real value when security alerts can be translated into action.
If the SOC detects suspicious activity but does not know whom to contact, if IT receives an alert without enough information to respond, or if the two teams disagree on priority levels, the enterprise may still react slowly during a critical incident.
For this reason, the IT and SOC collaboration workflow should be clearly defined before the hybrid model goes into operation.
2.1 Step 1: Define the monitoring scope
The organization should identify which systems and data sources will fall within the SOC's monitoring scope, such as:
Endpoints.
Firewalls.
Active Directory or other identity platforms.
VPN infrastructure.
Email security systems.
Servers.
Cloud workloads.
Business-critical applications.
Not every log source needs to be integrated into the SOC on day one.
Organizations should prioritize assets that are most important to business operations and then expand monitoring coverage according to risk and operational capacity.
2.2 Step 2: Agree on severity levels, SLAs, and escalation contacts
IT and SOC teams need a shared understanding of incident severity.
For example:
Critical: There is evidence of compromise or an immediate threat to a business-critical asset, requiring immediate escalation.
High: The activity could develop into a serious incident and requires investigation within a short timeframe.
Medium: The issue requires investigation or remediation but does not currently indicate an immediate business impact.
Low: The event should be monitored or may require configuration improvements but does not require urgent action.
Each severity level should be linked to a response SLA, communication channel, and responsible contact.
A correctly detected security alert can still result in a delayed response if it reaches the wrong person.
2.3 Step 3: The SOC triages and validates alerts
A SOC should not simply forward every automated alert to the IT team.
Effective operations require a triage process that reduces noise, adds context, and identifies the incidents that genuinely require action.
Instead of sending a notification such as:
“Multiple failed login attempts detected.”
The SOC should provide additional information, including the affected account, source of the activity, timestamp, behavioral pattern, related events, and the reason the alert is considered significant.
This allows the IT team to make decisions more quickly.
2.4 Step 4: IT provides operational and business context
Not every unusual activity is malicious.
The IT team helps determine whether detected activity could be associated with legitimate business operations.
Typical questions include:
Is the employee currently working remotely?
Is a scheduled system change taking place?
Has the user's device recently been replaced?
Is the account associated with an automated application or service?
Was the new access permission legitimately approved?
This step turns technical security data into a decision that reflects the organization's actual operating environment.
2.5 Step 5: Perform containment and remediation
Once an incident has been confirmed, the organization should already know who has authority to take action.
Possible actions include:
Disabling an account.
Isolating an endpoint.
Revoking an active session.
Resetting credentials.
Blocking an IP address or domain.
Updating firewall rules.
Patching affected systems.
Checking other assets for similar signs of compromise.
The SOC may recommend the appropriate response while IT implements the required changes within the environment.
In some operating models, the SOC can also be authorized to perform predefined containment actions directly, provided those actions have been approved by the enterprise in advance.
2.6 Step 6: Review and improve after the incident
The workflow should not end when the alert is closed.
IT and SOC teams should review:
What happened?
Which assets were affected?
Which security controls did not perform as expected?
Do monitoring rules need to be updated?
Should system configurations or policies be changed?
Could the same issue exist elsewhere in the environment?
This turns each security incident into an opportunity to strengthen the organization's overall security posture.
3. How should cybersecurity responsibilities be divided between IT and the SOC?
3.1 Outsourcing SOC operations does not mean outsourcing all responsibility for cybersecurity
The NIST Cybersecurity Framework 2.0 includes governance outcomes that emphasize defining, communicating, and coordinating cybersecurity roles and responsibilities across organizations, suppliers, customers, and partners.
A practical principle for the hybrid model is therefore:
An enterprise can outsource cybersecurity operations, but ownership of business risk and risk-related decisions should remain with the organization.
3.2 Using a RACI matrix to define responsibilities
A Responsibility Assignment Matrix, commonly known as RACI, can help eliminate grey areas between IT, the SOC, and business leadership.
Activity | Internal IT / IT Outsourcing | Outsourced SOC | Enterprise |
System operations | Responsible | Monitors relevant security events | Oversight |
Security log integration | Supports integration | Leads monitoring | Approves scope |
Alert analysis | Provides context | Leads analysis | Informed |
Incident validation | Collaborates | Leads investigation | Informed |
Account disabling | Executes or approves | Recommends | Based on policy |
Endpoint isolation | Executes or authorizes | Recommends or executes if authorized | Based on policy |
System changes | Leads implementation | Recommends | Approves when required |
Business risk assessment | Provides operational data | Provides security context | Owns the decision |
The actual matrix should be adapted to the organization's infrastructure, SLA, internal policies, and service scope.
More importantly, RACI should not exist only as documentation. All parties need to know exactly who should be contacted, who has decision-making authority, and who is authorized to isolate systems or take immediate protective action when an incident occurs outside normal business hours.
4. When should an enterprise use a hybrid IT–SOC model?
A hybrid model is particularly suitable for enterprises that already have IT operations capabilities but do not have the resources or business need to build a complete internal SOC.
Common indicators include:
IT teams are overwhelmed by security alerts.
No dedicated security personnel are available outside business hours.
The organization owns multiple security tools but lacks analysts to investigate their data.
Recruiting or retaining cybersecurity specialists is difficult.
Incident verification and response take too long.
Infrastructure is increasingly distributed across endpoints, identity platforms, cloud services, and SaaS.
Management requires better visibility into cybersecurity risk.
According to NIST SP 1308, published in March 2026, also connects cybersecurity risk management with workforce and resource allocation decisions. This supports an approach where organizations determine cybersecurity capabilities based on actual risk and operational requirements rather than assuming that every capability must be maintained internally.
The more useful question is therefore not: “Should we manage everything internally or outsource everything?”
It is: “Which capabilities should remain inside the enterprise, and which capabilities can be strengthened through an external specialist?”
IPSIP Vietnam also provides a case study on implementing IT infrastructure together with 24/7 SOC services for a financial group, offering a practical reference for organizations considering an integrated IT and cybersecurity operating model.
5. How can an enterprise combine its existing internal IT team with an outsourced Security Operations Center?
An enterprise can combine its existing internal IT team with an outsourced SOC by keeping IT responsible for technology operations and system administration, while assigning continuous security monitoring, analysis, and incident response support to the SOC.
For the model to work effectively, both sides should agree on at least five areas from the beginning:
Scope: Which assets, systems, and log sources will the SOC monitor?
Responsibilities: What will IT manage, and what will the SOC manage?
Severity and SLA: Which events require escalation, and how quickly?
Response authority: Who can disable accounts, isolate endpoints, or block connections?
Communication: Who should be contacted, and through which channel, when an incident occurs?
This is the core of an effective hybrid model.
The best SOC arrangement is not necessarily the one where the SOC performs the largest number of tasks. The SOC should take ownership of the activities that require continuous monitoring or deeper cybersecurity expertise than the existing IT team can reasonably maintain.
Likewise, the IT team does not need to become a team of security analysts. Its role is to maintain control of the technology environment and provide enough operational context for the SOC to make accurate assessments.
When both functions are connected through a clearly defined workflow, combining IT outsourcing and cybersecurity becomes a unified operating model rather than two separate services running in parallel.
If your organization already has an internal IT team or uses IT outsourcing and wants to add SOC capabilities without creating overlapping responsibilities, contact IPSIP Vietnam to discuss an IT-SOC collaboration model aligned with your infrastructure, internal resources, and cybersecurity risk profile.
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