Through our conversations with contractors seeking CMMC Level 2 certification, one question almost always comes up: "Do we have to secure the entire enterprise?"
The answer is often "no." Organizations have a few options to achieve CMMC compliance, but each option differs in cost and disruption to the business. Choosing the right approach early can save significant time, money, and frustration.
When organizations pursue CMMC Level 2 certification, they must demonstrate implementation of the 110 security practices defined in NIST SP 800-171. That part is straightforward. The tough part is determining which systems actually fall within the scope of those requirements.
Here are some things to consider when you find yourself at this early crossroad.
Two Different Paths to Compliance
One path is enterprise-wide compliance. In this approach, the entire corporate environment is brought into scope. That means every user, system, and process that could potentially touch Controlled Unclassified Information (CUI) must meet the full set of security controls. For some businesses, there is significant sticker shock with the enterprise option. Licensing, staff training, support of individual users, and the administration of all the information systems are costly and can be unwieldy to manage.
An alternative approach is a CMMC enclave. Instead of securing everything, the organization isolates CUI into a defined environment. Only the systems that store, process, or transmit that data must meet the full requirements. The enclave becomes a secure island inside the larger network.
Both models work, but there are some considerations.
Path 1: Enterprise
Enterprise compliance is often the most straightforward conceptually. The entire organization is treated as the CMMC boundary.
This approach typically includes:
- Company-wide implementation of security controls
- Standardized access management across all employees
- Organization-wide logging, monitoring, and documentation
- Policies and procedures are applied to every system
For organizations where CUI is widely distributed across departments, enterprise compliance may be the best overall approach.
However, implementing compliance enterprise-wide can also be expensive and disruptive. If hundreds of employees are included in scope, every device, account, and workflow must align with CMMC requirements. Many companies will need to migrate from a commercial to a Government Cloud tenant. Logging and monitoring may need to be added if they are not already onboard. New Policies, processes, and procedures will need to be created and followed by all. For some businesses, this can be a massive undertaking to add to the day-to-day workload.
Path 2: CMMC Enclave
A CMMC enclave is designed to limit that scope. Instead of securing the entire enterprise environment at once, an enclave creates a clearly defined boundary where CUI is handled. Only the systems and users inside that boundary must meet all CMMC controls.
The enclave typically includes:
- A dedicated secure environment for CUI
- Restricted user access
- Segmented networks or systems
- Controlled file sharing and communication tools
- Stronger (than the general enterprise) monitoring and logging
Employees who do not interact with CUI typically remain outside the enclave and are not subject to the full set of CMMC requirements, although certain shared enterprise services may still fall within scope if they provide security protections to the enclave.
For many small and mid-sized contractors, this approach significantly reduces the cost and complexity of certification. Especially for compartmentalized businesses that may not need to scale to enterprise.
The Hybrid Approach
There’s a third path we often see: a hybrid or phased approach. We call this "Enclave to Enterprise Migration."
Some organizations will start with a CMMC enclave, securing the teams and systems most directly involved with CUI. A project is put in place to add users, systems, and processes, eventually including the enterprise in a systematic way.
Next Steps
Choosing between a CMMC enclave and enterprise compliance isn’t just an IT decision. It’s a business decision that will shape cost, operational impact, and the timeline to certification.
Before deciding, organizations should take a close look at how CUI actually flows through their environment. That understanding often determines which approach makes the most sense.
Reach out to one of our experts to discuss your next step.
