The Short Difference
An MSP is responsible for keeping a client's technology working. An MSSP, a managed security service provider, is responsible for keeping it defended. The MSP answers the ticket when a laptop will not connect; the MSSP answers the alert when that laptop starts talking to a known attacker's server.
The two overlap. Security is part of many MSPs' work, and an MSSP often manage devices and identities to do their job. The real difference is where security sits in the business: for an MSP it is one service line among several, and for an MSSP it is the product, the staffing model and the reason the client signed.
Self-description is not precise either. In Kaseya's 2024 MSP Benchmark Survey, 65% of respondents identified as MSPs and 12% as MSSPs, so most respondents described themselves by their IT work rather than their security work. The label tells a prospect what you lead with; the services tell them what they get.
What Each One Actually Delivers
| Area | Typical MSP | Typical MSSP |
|---|---|---|
| Primary promise | IT that works and is supported | Threats detected and stopped |
| Core team | Help desk and field technicians, engineers, a vCIO | Security analysts, threat hunters, incident responders |
| Operations center | NOC watching uptime and performance | SOC watching security events |
| Core tools | RMM, PSA, documentation, backup | SIEM, EDR or XDR consoles, threat intelligence, case management |
| Coverage hours | Business hours help desk, alerting after hours | Continuous monitoring by staff who can act |
| Security scope | Baseline controls: patching, EDR, MFA, email filtering | Detection, investigation, response, forensics, compliance reporting |
| Typical buyer | Small and midsize business owner or office manager | IT director, CISO or a compliance-driven buyer, often alongside internal IT |
| Success measure | Response and resolution times, client satisfaction | Time to detect and contain, false positive rate |
The operations center is the clearest dividing line. An MSP's NOC is built to keep systems up, and its alerts mostly mean something broke. A SOC is built to find an adversary who does not want to be found, and its alerts mostly mean somebody has to decide, quickly, whether an attack is under way.
How the Staffing and Tools Differ
The hardest part of being an MSSP is not the software, it is the people. Detection work needs analysts who can read an alert in context, and response needs someone available at any hour with the authority to isolate a machine or disable an account. That is a different hire from a help desk technician, and it costs more to recruit and keep. The NOC and SOC section of this site covers those roles.
The tools reflect the job. MSPs center on RMM and PSA; MSSPs center on a SIEM that collects logs from every source, EDR or XDR consoles, and threat intelligence feeds. Log retention matters here: CISA's advisory on threats to MSPs and their customers recommends storing the most important logs for at least six months, which is storage and cost an MSSP plans for from the start.
Speed is the measure that separates them. IBM's 2025 Cost of a Data Breach Report found organizations took a mean of 241 days to identify and contain a breach. An MSSP exists to shorten that dwell time, and tracks it the way an MSP tracks resolution time. The KPI page on time to identify and contain a breach explains how to measure it.
Why the Line Is Blurring
Clients no longer buy IT support and security separately in their heads. In Kaseya's 2025 Global MSP Benchmark Report, 76% of MSPs said their clients are most concerned about security, and 67% said security is one of their five fastest-growing revenue categories. An MSP that cannot answer the security question loses the deal to one that can.
At the same time, MDR vendors now sell monitoring and response through MSPs, so an MSP can offer continuous detection without staffing a SOC. That puts MSSP-grade services inside MSP plans and makes the label less useful than the service list. For the client, the practical question becomes who watches the alerts at night and who acts on them.
Insurers and regulators push in the same direction. Cyber insurance applications ask detailed questions about monitoring, MFA and backups, and clients in regulated industries face audits that ask who reviews their logs. An MSP that runs the environment is often the one expected to answer, whatever it calls itself. That expectation is worth reading carefully, because answering yes on a client's insurance form is a promise your contract and your staffing have to keep.
Should Your MSP Become an MSSP?
Rebranding as an MSSP is a staffing and liability decision, not a marketing one. Answer these questions honestly before you change what you call yourself.
- Can you staff continuous monitoring with people who can act, including nights, weekends and holidays, without burning out your team?
- Do you have enough security clients to keep analysts busy and profitable, or would the SOC run at a loss for years?
- Can your contracts and insurance carry the liability of a promise to detect and respond, not just to maintain?
- Do you want to sell to IT directors and compliance buyers, who expect reports, evidence and audits, rather than to business owners?
- Would your own security posture pass the scrutiny a security client will apply, such as a SOC 2 report?
If most answers are no, you can still sell strong security without the MSSP label. Our answer on whether you need a SOC walks through the build, buy and partner options in more detail.
Partnering With an MSSP Instead
For many MSPs the better route is a partnership. Kaseya's 2024 survey found 26% of respondents said the service they most wanted to outsource was a security operations center. Partnering lets you keep the client relationship and the IT work while a specialist handles detection and response behind you.
Making the Partnership Work
- Agree in writing who does what when an alert fires: who investigates, who isolates, who calls the client and who fixes the root cause.
- Decide whether the partner is white-labeled under your brand or visible to the client, and reflect that in your agreement.
- Price your own triage and communication time on top of the partner's fee, as covered in how MSPs price their services.
- Check the partner's own certifications, insurance and breach history, since their failure lands on your client.
The same logic applies in reverse. Some MSSPs work alongside a client's internal IT or another MSP, which is a form of co-managed IT. Clear lines of responsibility matter more than who holds which label.
How to Describe What You Sell
Prospects compare you against both MSPs and MSSPs, so describe the service, not the acronym. Say which security controls every client gets, whether monitoring is continuous and staffed, who responds to an incident, and how fast. A plain statement of coverage wins more trust than a label the buyer has to interpret.
Put the same description in your agreement. If your plan includes monitoring during business hours only, or if a partner handles overnight response, write it down, so a client never assumes a level of protection they did not buy. The gap between what a client thinks they have and what you deliver is where security disputes start.
Whichever route you choose, make sure your margins support it. Security services carry real tool and labor cost, so watch your managed services gross margin as you add layers, and give security leadership a clear home, whether that is an internal hire or a vCISO engagement.
Common Questions
Is an MSSP more expensive than an MSP?
Usually, for the security scope alone, because continuous staffed monitoring and response cost more to deliver than IT support. Clients often pay both when an MSP runs IT and an MSSP runs detection.
Can an MSP and an MSSP serve the same client?
Yes. The MSP manages the environment while the MSSP monitors it, which works when the contract states who responds to each type of alert.
Does an MSSP need its own SOC?
An MSSP typically operates its own SOC, since staffed monitoring is the core of the service. Some smaller ones build on a larger provider's platform and add their own analysts.
Is MDR the same as an MSSP?
No. MDR is a specific service focused on detecting and responding to threats on endpoints and related sources, while an MSSP may offer MDR alongside firewall management, compliance and other security work.
Do MSSPs handle compliance audits?
Many help clients prepare for audits by providing logs, reports and evidence of controls. The audit itself is performed by an independent auditor, not the MSSP.
Can I call myself an MSSP if I resell MDR?
You can, but be precise about what you deliver. If a partner runs the monitoring, say so in the agreement, since clients and insurers ask who actually watches the alerts.