Every MSP I talk to is somewhere on the same journey. They know they need to add security services. They have heard of MDR and SOCaaS. They are trying to work out which one fits their business. 

The answer matters. Get it wrong and you are either paying for capability you do not need or leaving gaps that attackers will find. 

Here is how I think about it. 

What SOCaaS is 

SOC as a Service means outsourcing your Security Operations Center function to a third-party provider. Instead of building a SOC in-house, hiring analysts, buying SIEM licenses, setting up detection rules and building incident response playbooks, you partner with a provider who runs all of that for a fixed monthly fee. 

What you get: 24/7/365 monitoring across your clients' environments, threat detection and investigation, incident response, vulnerability management, risk assessment reports and ongoing security management. The full operation. 

The key word is full. SOCaaS is not a single tool. It is an entire security function. 

What MDR is 

Managed Detection and Response is exactly what it says: detection and response. An MDR provider monitors your environment, detects threats and takes action to contain them. The better MDR providers also do proactive threat hunting. 

What MDR does not include: vulnerability management, compliance reporting, risk assessments, ongoing security posture management or the broader advisory function MSPs need to have intelligent client conversations. 

MDR is strong at what it does. It is also narrow. That is not a criticism. That is the design. 

Four areas where SOCaaS and MDR diverge 

1. Scope 

SOCaaS covers the entire security stack: networks, endpoints, servers, applications, cloud environments and identity. MDR is typically centered on endpoints and network traffic, with detection and response as the primary output. 

If your client gets hit by an attack that originates in their cloud environment, pivots through their identity provider and lands on endpoints, MDR catches the endpoint activity. SOCaaS catches the whole chain. 

2. Proactive vs reactive 

MDR is fundamentally reactive. It detects threats and responds to them. That has value. What it does not do is tell you what is vulnerable in a client's environment before an attacker finds it. SOCaaS includes vulnerability management and risk assessment. You get weekly reporting on what is exposed, prioritized by severity, with remediation guidance. That is a proactive security posture, not incident containment after the fact. 

3. Reporting and client communication 

MDR reports cover what was detected and how it was handled. That is useful for your security team. It is not useful for a client conversation with a CEO or a board. SOCaaS provides layered reporting: technical remediation detail for your IT team, risk assessment summaries for client leadership and trend data showing how a client's security posture has improved over time. That reporting capability is a direct revenue tool. It is how you demonstrate value, justify renewals and open upsell conversations. 

4. SLA coverage 

An MDR SLA covers response time and containment speed. That is the scope of the service, so that is the scope of the guarantee. 

A SOCaaS SLA covers the end-to-end security operation: availability, responsiveness, resolution times and the broader service commitment. When a client asks you what your security guarantee looks like, a SOCaaS SLA gives you a complete answer. An MDR SLA gives you a partial one. 

So which one does your MSP need? 

If you have an existing in-house SOC with analysts and process already in place, and you need to augment your detection and response capability with more advanced tooling or specialist threat hunters, MDR fills that gap without you paying for functions you already have. 

If you are building a security practice from scratch, or if you have limited in-house security expertise and need to deliver full security services to your clients, MDR is not enough. You need SOCaaS. It includes everything MDR delivers and adds the vulnerability management, compliance support and reporting that turn security into a managed service you sell and retain clients on. 

Think of it this way. MDR should be part of a SOCaaS package. If your SOCaaS provider does not include strong detection and response capability, find a different provider. Starting with MDR and trying to build the rest around it is a hard way to do this. 

Ready to build a security practice that scales? 

enhanced.io delivers SOCaaS built exclusively for MSPs: 24/7 monitoring, proactive vulnerability management, layered reporting and a commercial model designed for the SMB market. See what our SOC as a Service packages cover and talk to us about fitting them to your operation.