By Mike Chen, Director of IT Solutions · January 22, 2025

Managed Security Services vs In-House: The Real Decision Framework

TL;DR: For most 50 to 500 employee companies, a Managed Security Service Provider (MSSP) beats a pure in-house SOC on cost, 24/7 coverage, and compliance readiness. But a hybrid model, internal security lead plus MSSP execution, wins most often once SOC 2, HIPAA, or CMMC enters the picture.

I run this comparison weekly with IT Directors who are 60 days from an audit or two weeks from a cyber insurance renewal. The question is rarely about vendor preference. It's about total cost of ownership and where liability actually sits when something goes wrong at 2am on a Saturday.

This article gives you the framework, the real tool prices, and the compliance nuance that the top results gloss over.

What You're Actually Comparing

An in-house SecOps function means dedicated headcount, a SIEM you license and tune yourself, your own playbooks, and full control. The fixed cost is high. The visibility is total.

An MSSP runs a shared Security Operations Center (SOC) that monitors many clients against contracted SLAs. You're buying threat detection, incident response, SIEM management, firewall management, vulnerability management, and endpoint detection and response (EDR) as a subscription. The cost is variable. The control is delegated, not surrendered.

Most MSSPs deploy a known stack: CrowdStrike Falcon or SentinelOne for EDR, Splunk or Microsoft Sentinel for SIEM, Okta or Entra ID for identity. In-house teams often run the same tools, just with their own analysts watching the consoles. The difference isn't the tech. It's who's awake at 3am when an alert fires.

According to the IBM Cost of a Data Breach Report 2024, the global average breach cost hit $4.88 million, and the average time to identify and contain a breach was 258 days. The (ISC)² 2023 Cybersecurity Workforce Study put the global cybersecurity talent shortage at 4 million unfilled roles. That's the macro context. Now let's talk numbers.

The TCO Breakdown Most IT Directors Undercount

Here's what an in-house SOC actually costs for a 200-employee company that wants real 24/7 coverage.

A mid-level security analyst in the US earns roughly $103,000 in base salary, per BLS Information Security Analyst data (2023). Add 30% for benefits and overhead and you're at about $134,000 fully loaded. To cover 24/7/365 with PTO and sick coverage, you need at least three analysts minimum, realistically four. That's $400,000 to $540,000 in people alone.

Then add tooling. Splunk Enterprise at mid-market log volume runs around $2,000 to $4,000 a month. CrowdStrike Falcon licensing for 200 endpoints lands near $60 to $185 per endpoint annually depending on tier. Threat intel feeds, training budgets, SOAR tooling, none of that is free.

A 3-person in-house SOC plus tooling for a 200-person company realistically runs $550,000 to $700,000 a year. And that assumes nobody quits. Replacement cost for a security analyst is commonly cited at $15,000 to $30,000 once you factor recruiter fees and ramp-up time. Alert fatigue makes turnover the rule, not the exception. For a more granular look at what managed IT support costs, see our managed IT services pricing guide.

An MSSP contract covering equivalent scope for a 200-seat mid-market company typically runs $3,000 to $8,000 a month, so $36,000 to $96,000 annually. Even after you add your internal IT manager who owns the relationship, the math isn't close.

Who Owns Liability When You Outsource Security

This is the part that gets companies in trouble.

For SOC 2 Type II, the auditee is your company. Your MSSP can provide evidence, can appear as a subservice organisation in your audit, can hand you screenshots and reports that satisfy AICPA Trust Services Criteria like CC7.2 and CC7.3 around system monitoring and incident response. But if controls fail, the qualified opinion lands on your report, not theirs.

For HIPAA, 45 CFR §164.308 requires covered entities to have a documented security management process. Your MSSP becomes a Business Associate and must sign a BAA. They execute controls. You retain liability. HHS willful neglect penalties run up to $71,162 per violation as of the 2024 adjusted civil monetary penalties, with annual caps over $2 million per violation category.

For CMMC Level 2, the prime contractor gets assessed against NIST SP 800-171, not the MSSP. Third-party support is allowed and common. Accountability is not transferable.

A vendor calling you compliant is not evidence that you are. Compliant without evidence is just a word the vendor uses to keep the invoice flowing. If you're sizing your own gap, our breakdown of SOC 2 certification cost walks through real budgets by company archetype.

Questions to ask any MSSP before signing:

• Do you provide audit-ready evidence packages mapped to specific controls?
• Will you sign a BAA, and will you appear as a subservice organisation in our SOC 2?
• What happens to liability if your SOC misses a detection that we get fined for?

Response Time Is Where the Gap Shows Up

The IBM 2024 report puts mean time to identify a breach at 194 days and mean time to contain at 64 days for organisations without mature security automation. That's the in-house reality for most 50 to 500 employee companies, where one person owns IT, security, and the help desk inbox.

Typical MSSP SLAs commit to mean time to detect under 1 hour and mean time to respond under 4 hours for critical incidents. Sophos State of Ransomware 2024 reported the median ransomware recovery cost (excluding ransom) at $2.73 million. One extra day of dwell time is not an abstract number.

The Sophos report puts average recovery time at 23 days for organisations without tested backups. Testing the restore, not just the backup job, is what decides whether an incident becomes a board update or a breach disclosure letter.

CyberStar publishes its IR SLA: if you get breached Thursday night, we're on-site Friday morning. That's not a generic "we'll call you back" promise. Read more on how we think about selecting a cybersecurity partner for the questions that separate marketing from operations.

The Hybrid Model: Where Most Mid-Market Companies Land

Most CyberStar clients in the 150 to 400 employee range run a hybrid model. It works because it splits ownership cleanly.

Stays in-house: policy and governance, vendor relationships, identity governance (Okta or Entra ID administration), security awareness training programme ownership, internal audit coordination, business continuity planning, board reporting.

Goes to the MSSP: 24/7 SOC monitoring, SIEM tuning and alerting, EDR management, vulnerability scanning and remediation prioritisation, firewall rule management, incident response execution.

Cost structure: one internal IT Security Manager at $115,000 to $145,000 base (per BLS and LinkedIn Salary Insights 2024) plus an MSSP contract at $3,000 to $8,000 a month. Compare that to staffing a 3-person in-house SOC at $400,000-plus in salaries alone.

The hybrid also solves cyber insurance. Insurers in 2024 are demanding documented 24/7 monitoring, MFA, and EDR as table stakes. Marsh's 2023 cyber insurance market update noted that companies with documented managed detection and response saw materially better renewal terms compared to those without. If your renewal is coming up, our breakdown of cyber insurance requirements for 2026 covers what carriers are actually checking. Not sure whether MSSP or in-house fits your situation? Our guide to choosing managed security services walks through the decision criteria.

Hidden Transition Costs Nobody Mentions

Moving from in-house to MSSP, or between MSSPs, isn't free. Plan for it.

Going to an MSSP: data migration from your existing SIEM, retraining staff on new dashboards, a 30 to 90 day onboarding window where coverage is uneven while detection rules get tuned to your environment.

Leaving an MSSP: typical contract notice periods run 30 to 90 days, with some auto-renewing annually. Get data portability for log archives in writing. Confirm whether custom detection rules built for you are your property or theirs. If the MSSP uses a proprietary SIEM platform, re-ingesting and re-tuning at a new provider can run $20,000 to $60,000 in labour alone.

What to require in any MSSP contract:

• 60-day written termination notice, no auto-renewal traps
• Explicit data ownership for logs and detection content
• Defined offboarding SLA with format specifications for log exports
• Right to audit the MSSP's controls annually

Decision Framework by Company Stage

A Coalition 2023 claims report noted a meaningful share of cyber claims face coverage disputes when control documentation is missing or stale. CyberSeek's 2024 data shows average time to hire a qualified security analyst exceeds 100 days in most US markets. Both data points push the math toward MSSP or hybrid for anyone under 500 employees.

This pattern shows up across the Nashville, Charlotte, and Raleigh markets. If you're in those markets, our Cybersecurity Services Nashville and SOC 2 Compliance Charlotte pages cover what local engagements typically scope to.

When to Book the Audit

If you're within 90 days of a SOC 2 or HIPAA audit and don't know where you stand, book a free 30-minute audit with Mike. I'll tell you exactly which gaps an MSSP can close before your audit date, and which ones need to stay in-house regardless of how good your vendor is.

FAQ

Q: Is an MSSP the same as an MSP? No. A Managed Service Provider (MSP) handles general IT: help desk, patching, infrastructure. A Managed Security Service Provider runs a SOC, manages SIEM and EDR like CrowdStrike Falcon, and handles incident response. Some firms do both. Plenty of MSPs claim security capabilities they don't actually staff. Ask who's watching the SIEM at 3am on Sunday.

Q: Can an MSSP help us pass a SOC 2 audit? Yes, but they don't own the audit. An MSSP can provide evidence mapped to Trust Services Criteria like CC7.2 and CC7.3, appear as a subservice organisation, and execute monitoring controls. Your company remains the auditee. Choose an MSSP that delivers audit-ready evidence packages, not just monthly PDF reports.

Q: What's a realistic monthly cost for managed security services for a 200-person company? Expect $3,000 to $8,000 per month for a mid-market MSSP contract covering 24/7 SOC, SIEM, EDR (CrowdStrike or SentinelOne), and vulnerability management. Add-ons like dedicated IR retainers, GRC tooling, or compliance evidence automation push costs higher. Compare against $550,000-plus for an in-house equivalent.

Q: If we use an MSSP, do we still need an internal IT security person? For companies over 100 employees with any compliance obligation, yes. You need someone owning policy, vendor management, identity governance, and audit coordination. The MSSP handles execution. An IT Security Manager at $115,000 to $145,000 plus an MSSP contract is the standard mid-market hybrid model.

Q: How fast should an MSSP respond to a ransomware incident? Critical incident SLAs should commit to mean time to respond under 4 hours, with on-site capability within 24 hours for major events. CyberStar publishes its IR SLA: breached Thursday night, on-site Friday morning. If an MSSP won't put their response times in writing with penalties for missing them, keep shopping.