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Managed IT Glossary

What is MSSP (Managed Security Service Provider)?

A Managed Security Service Provider (MSSP) is a specialized managed service provider focused on cybersecurity — monitoring, detecting, and responding to security threats on behalf of client organizations. Modern MSSPs typically deliver SOC as a service, MDR, and XDR capabilities.

Blocks 99% of password attacks
Required by most cyber insurance
Core to SOC 2, HIPAA, PCI
How It Works

How MSSP works

Three-step view of how it operates in practice.

1

Deploy tooling

Endpoint agents, email connectors, identity telemetry, and log collectors get deployed across your environment.

2

Monitor 24/7

Analysts watch for threats around the clock, using threat intelligence and behavioral analytics to filter signal from noise.

3

Respond & report

When incidents happen, MSSPs contain them, investigate, and produce evidence for compliance and insurance.

MSSP Variants

MSSP vs MSP vs in-house SOC

A clear breakdown of the common variants.

Model

MSP only

Basic IT management, minimal security. Attractively priced, increasingly insufficient.

Most common

MSP + MSSP separate

Time-based one-time codes from an app like Microsoft Authenticator or Google Authenticator. Offline-capable and phishing-resistant against many attacks.

Convenient

Integrated MSP+MSSP

The user approves a sign-in with a tap on their phone. Easy to use but vulnerable to MFA fatigue attacks — always pair with number matching.

Strongest

In-house SOC

FIDO2 keys like YubiKey, or device-bound passkeys. Phishing-resistant by design — the key will not authenticate against a fake domain.

Why It Matters

Why MSSP matters for SMBs

A Managed Security Service Provider (MSSP) is a specialized managed service provider focused on cybersecurity — monitoring, detecting, and responding to…

$45,400
average annual savings for SMBs that use an MSSP vs building in-house security
Source: Gartner SMB Security Operations Report, 2024
Pitfalls

Common MSSP mistakes

  • MSSP without MSP contextAn MSSP that doesn’t understand your business, applications, and user patterns generates noisy alerts. Integration matters.
  • Alert-only serviceAdmins, finance, and anyone with access to money or sensitive data should use an app or hardware key — never SMS alone.
  • No compliance reportingA good MSSP produces audit-ready evidence for SOC 2, HIPAA, CMMC, and cyber insurance. Skip this, and audits become painful.
  • Unclear response authorityWho can isolate a laptop at 3am? Who can disable a user? Pre-define the boundary or lose minutes during real incidents.
Common Questions

MSSP frequently asked questions

Usually both functions — whether through one integrated provider or two specialists. Running only an MSP without security depth is increasingly risky.
SMB offerings typically $5-$15 per endpoint per month. Pricing scales with coverage (endpoints only vs endpoints + email + identity + cloud).
At minimum: EDR/XDR tooling, 24/7 monitoring, incident response, threat hunting, compliance reporting, quarterly reviews.
Ask for mean time to detect / respond on comparable engagements, review the runbook library, request references, and confirm analyst-to-client ratios.
Have a documented recovery process before it happens. Typically an administrator verifies the user's identity through an out-of-band channel, temporarily disables MFA, and re-enrolls the user with a new device. Backup codes or a secondary security key reduce downtime.
Related Services

LogicalNet services related to MFA

Identity & Access Protection Primary

MFA enforcement, conditional access, least privilege, and identity monitoring.

Email Security

Phishing defense, account-takeover monitoring, and secure email gateways.
Related Terms

Related glossary terms

MSP

Policies that adapt to device, location, and risk signals.

MDR

A security model that verifies every request as if it came from an open network.

SOC as a Service

Give users only the access they need — nothing more.

SOC

FIDO2 keys and passkeys that cannot be proxied or replayed.
Identity & Access

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