MSPs vs MSSPs: Why Each Matters for CMMC Compliance 

MSPs manage daily IT operations, while MSSPs deliver continuous security monitoring. Learn about their roles in CMMC compliance and the importance of using the right provider.

Summary
MSPs manage daily IT operations, while MSSPs deliver continuous security monitoring, both essential for CMMC compliance. Using the wrong provider risks data loss, limited access, and failed assessments. Summit 7’s Guardian (MSP) and Vigilance (MSSP) ensure secure, compliant, and scalable environments purpose-built for DIB contractors handling CUI.

For organizations handling Controlled Unclassified Information (CUI), the ability to prove, monitor, and maintain strong cybersecurity practices directly impacts contract eligibility, operational resilience, and long-term growth.  

In this article, I’ll explore conversations between Clay Archer (a Senior Product Manager at Summit 7) and myself about: why Cybersecurity Maturity Model Certification (CMMC) truly matters; what risks arise when the wrong managed service provider (MSP) or managed security service provider (MSSP) holds the keys to your environment; and how Summit 7’s Guardian and Vigilance services deliver compliant, secure, and scalable IT solutions purpose-built for Defense Industrial Base (DIB) contractors. What Makes CMMC Meaningful 

CMMC isn’t just hurdle. It’s a critical safeguard for protecting CUI within the DIB. You don’t get to just tick the boxes and call it a day. Organizations that achieve CMMC Level 2 demonstrate real, operational security maturity across three core areas: 

  1. Policies and Procedures 
  1. Examine, Interview, and Test 
  1. Monitor and Assert 

These three areas prove commitment to confidentiality, integrity, and the secure handling of sensitive government information. 

Policies and Procedures: Building Your Security Foundation 

CUI is the government’s data, and they are allowing you to hold it, use it, produce it, etc. Once the government entrusts you with CUI, it’s your responsibility to protect it, and you must demonstrate exactly how you do it.  

Policies define what you do. Procedures define how you do it. Together, they show assessors that your organization has implemented structured, repeatable methods for handling sensitive data. 

Writing out policies and procedures isn’t enough. To earn CMMC, you must actively follow those policies and procedures and show assessors how you execute them in real workflows. 

Examine, Interview, and Test: Proving Your Security 

You can’t sprinkle your environment with magical CUI dust and call it good. You have to prove that you’re following effective policies and procedures to an assessor. 

CMMC assessors validate your security posture by: 

  • Examining your technical environment 
  • Interviewing your personnel 
  • Testing your controls 

Proving your compliance through examination, interviews, and tests elevates it from theory to function. You have to gather evidence, artifacts, logs, and knowledgeable staff who can demonstrate how your environment protects CUI day-to-day. 

Monitor and Assert: Maintaining Control of CUI 

It’s also important to monitor the CUI in your environment. Many organizations without CMMC struggle to answer where their CUI is.  Whether it’s in a database, Word docs, spreadsheets, or even images, you must be able to identify, label, and secure CUI, not just throw it on a file server.  

Can you answer: 

  • Where is all your CUI located? 
  • Is it properly labeled and restricted? 
  • Are monitoring logs stored for forensic investigation? 
  • Does leadership formally attest to CUI protections? 

If you can’t, your organization is at risk of compliance failures and potential data breaches. 

MSPs vs. MSSPs: What’s the Difference? 

Both MSPs and MSSPs can be key players in your CMMC strategy, but they perform very different roles. 

MSP: Managed Service Provider 

An MSP handles the operational side of IT. They ensure your environment runs efficiently so that your team can work. MSP responsibilities include: 

  • User and device support 
  • Patch management 
  • Identity and access management 
  • Network administration 
  • Backup and recovery 
  • IT configuration and engineering 

Summit 7’s MSP offering is Guardian, a managed IT service built specifically for Microsoft 365 Government Community Cloud (GCC) High, Azure Government, and CMMC compliance. 

MSSP: Managed Security Service Provider 

An MSSP handles security operations such as monitoring, detecting, and responding to cyber threats. 

An MSSP’s responsibilities include: 

  • 24/7/365 monitoring and alerting 
  • Intrusion detection 
  • Vulnerability management 
  • Threat intelligence 
  • Incident response and forensics 

Summit 7’s MSSP offering is Vigilance, a security service designed to meet CMMC Level 2 monitoring and detection requirements. 

Together, MSPs and MSSPs offer end-to-end protection 

CMMC requires reliable IT operations and advanced cybersecurity monitoring. An MSP alone won’t meet security requirements. An MSSP alone won’t support daily operations. 

Guardian (MSP) keeps your business running. 
Vigilance (MSSP) keeps your environment secure. 

Risks of Using the Wrong MSP/MSSP 

  • Providers may limit your administrative access 
  • You may not be able to export or retrieve your own data 
  • Providers may dissolve, merge, or drop DIB clients 
  • Engineers may be unavailable during your CMMC assessment 
  • Providers may not pursue CMMC Level 2 certification themselves 

If you’re relying on engineers who cannot demonstrate your technical controls, you won’t pass a CMMC assessment. If an MSP’s configuration cannot be trusted, a new MSP may need to rebuild your environment, costing you time, money, and security. 

Does your MSP or MSSP hold the keys to your IT system? 

Who has the keys to your IT system? This is really important. If you’re using the wrong MSP or MSSP, they may be holding the keys and leaving you without a spare.  

Depending on the provider, you may not have admin rights to your own data. You may not have the ability to go in and make changes if you need to or pull your data out at any time. 

If that provider goes belly up and doesn’t hand back the keys (which we’ve seen in the DIB before), you’re in trouble. 

Minimum Viable Doesn’t Work in Security 

Minimum viable solutions fail in cybersecurity, especially in environments that handle CUI. Hardware can be locked down, but sensitive information can travel anywhere in seconds. 

This is why organizations need: 

  • A documented incident response plan 
  • Around-the-clock monitoring 
  • Rapid threat detection 
  • Access to trained engineers during assessments 
  • Continuous log collection and review 

Summit 7’s Vigilance team works seamlessly with Guardian to deliver complete IT and security coverage, ensuring your environment stays compliant and protected. 

Why Summit 7? 

Summit 7 empowers DIB organizations with secure, compliant, and scalable IT services built exclusively for Microsoft’s government cloud platforms. Here’s how Summit 7 is different: 

  • You own your Microsoft tenant 
  • Summit 7 administrators support you, but you retain full control 
  • 100+ clients successfully certified at CMMC Level 2 
  • 1,400+ DIB clients served 
  • 725+ CMMC/National Institute of Standards and Technology (NIST) implementations completed 
  • 350+ U.S. citizens on staff 

Guardian (MSP) delivers full-spectrum IT management across Microsoft 365, Azure Government, and on-premises systems. 

Vigilance (MSSP) delivers 24/7/365 security operations, threat detection, and incident response. 

Together, they derisk your growth, strengthen your compliance posture, and protect your environment while you focus on what you do best: supporting the warfighter. 

Contact an expert today.

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