SOC vs MDR: Which Managed Security Service Do You Need?
A managed SOC and an MDR service both provide ongoing security monitoring, but they differ in scope, depth, and what they include. For most UK SMEs, MDR is the more practical and cost-proportionate starting point.
Direct Answer
MDR focuses on endpoint and identity threat detection — human analysts investigate alerts and contain threats at the device level. A managed SOC covers the full environment: networks, servers, cloud services, and applications via a centralised SIEM. For most UK SMEs, MDR is the more practical and cost-proportionate starting point. A managed SOC is more appropriate for regulated environments or those requiring comprehensive log retention and forensic capability.
Where SOC and MDR Differ
Understanding the practical differences helps match the service to your actual security requirements.
Scope of Coverage
MDR focuses on endpoints and often identity. A managed SOC typically monitors endpoints, network devices, cloud services, servers, and applications via a centralised SIEM.
Log Aggregation
Managed SOC services ingest logs from across the environment into a SIEM for correlation and long-term retention. MDR platforms focus on endpoint telemetry rather than broad log collection.
Cost
MDR is generally less expensive than a full managed SOC because it covers a narrower scope. A managed SOC requires more infrastructure and analyst time.
Incident Response Depth
Both services include incident response, but managed SOC providers typically have broader forensic capability and can investigate multi-vector incidents across the full environment.
Compliance Coverage
Organisations with regulatory requirements around log retention and audit trail (FCA, ISO 27001, PCI DSS) often require the breadth of a managed SOC rather than MDR alone.
Deployment Complexity
MDR typically deploys an agent per endpoint and is operational quickly. A managed SOC integration involves connecting multiple log sources and may require more configuration.
MDR vs Managed SOC: Feature Comparison
A direct comparison of what each service typically includes for UK SMEs.
| Feature | MDREndpoint-focused | Managed SOCBroad environment coverageRecommended |
|---|---|---|
| Endpoint threat detection | ||
| 24/7 human analyst monitoring | ||
| Network device monitoring | ||
| SIEM log aggregation | ||
| Cloud service monitoring (M365, Azure) | Partial | |
| Forensic investigation capability | Limited | |
| Typical per-user cost /mo | £12–£30 | £25–£60 |
Many providers offer MDR as a component within a broader managed SOC service. AMVIA can advise on the appropriate scope for your organisation.
Frequently Asked Questions
The top threats are phishing (85% of breaches), ransomware (doubled year-on-year), business email compromise (increased 33% in 2025), and supply chain attacks (35.5% of all breaches now originate from third parties). AI-powered attacks are accelerating all of these threat categories.
Organisations with Cyber Essentials certification are 92% less likely to make a claim on their cyber insurance. Certification is mandatory for UK government contracts involving sensitive data. Only 3% of UK businesses are currently certified, giving certified businesses a competitive advantage.
The first hour after detection is considered the golden hour that determines outcome severity. Organisations that detect breaches internally save an average of $900,000 in costs. Only 22% of UK businesses have a formal cybersecurity incident management plan in place.
BEC is a type of fraud where attackers impersonate executives or suppliers to trick employees into transferring funds or sharing sensitive data. BEC attacks increased 33% in 2025. The average loss per BEC incident is $137,000. Even organisations with fewer than 1,000 employees face a 70% weekly probability of a BEC attempt.
Only 14% of UK businesses formally review cyber risks from their immediate suppliers. 35.5% of all global data breaches in 2024 originated from third-party compromises. Supply chain attacks add an average of £241,620 to the total cost of a breach and take 267 days to detect and contain.
Get the Right Level of Security Monitoring for Your Business
AMVIA can help you understand whether MDR, a managed SOC, or a combination is the right fit. Speak to our security team for advice without commitment.
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