CMMC Compliance

The Cybersecurity Maturity Model Certification (CMMC) is a cybersecurity framework developed by the U.S. Department of Defense (DoD) to enhance cybersecurity practices and protect sensitive information across the defense industrial base. Network Access Control (NAC) plays a vital role in supporting CMMC compliance requirements, as it allows organizations to enhance their network security, enforce access controls, and more.

Fortify CMMC compliance and secure your digital kingdom with zero trust access control from Portnox.

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Access Control (AC) Domain

NAC solutions are designed to help enforce access control policies by ensuring that only authorized devices and users can connect to the network, reducing the risk of unauthorized access. The Portnox Cloud enables the implementation and on-going enforcement of authentication, authorization and accounting (AAA) policies out-of-the-box, so you can always be one step ahead of any risk posed to your network.

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Identification & Authentication (IA) Domain

Most NAC tools can provide mechanisms for device and user identification, such as MAC address authentication or certificate-based authentication, which can contribute to meeting the CMMC requirements for strong identification and authentication practices. Portnox delivers a variety of secure authentication methods through our integrations with top IAM tools, our Certificate Authority (CA), secure MAB for IoT, and more.

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System and Communications Protection (SC) Domain

Network access control systems aid in network segmentation by isolating different types of resources or sensitive systems. This helps control network traffic, limit lateral movement, and mitigate the impact of a potential security breach. Portnox delivers segmentation capabilities that can factor in device type, user role, device risk, and more. It only takes a few minutes to configure dynamic VLAN assignment capabilities after setting up your instance.

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System and Information Integrity (SI) Domain

The Portnox Cloud delivers system and information integrity by enabling organizations to monitor and enforce security policies by continuously scanning devices for compliance, checking for vulnerabilities – ensuring that devices and the network they’re connected to remain in a secure state. When a connected endpoint falls out of compliance, Portnox can automatically remediate that device, bringing it back to a healthy, compliant state.

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802.1X: Empowering CMMC compliance with the access control gold standard.

As a robust protocol that provides secure authentication and access management to networks, 802.1X is widely regarded as the gold standard for network access control. The Portnox Cloud has been designed to support any network that leverages 802.1X, giving you unprecedented flexibility, compatibility, and security when it comes to your network.

CMMC Compliance

FAQs

CMMC compliance refers to meeting the Cybersecurity Maturity Model Certification requirements established by the U.S. Department of Defense (DoD) for organizations in the defense industrial base. CMMC is designed to ensure contractors protect sensitive government information using defined cybersecurity practices. Portnox Cloud supports CMMC compliance by strengthening access control, device visibility, and continuous policy enforcement across distributed environments.
CMMC applies to organizations that contract with the U.S. Department of Defense or handle sensitive DoD data such as Controlled Unclassified Information (CUI). This includes prime contractors and subcontractors across the defense supply chain. Portnox Cloud helps organizations support CMMC compliance by controlling access to networks and ensuring only authorized users and trusted endpoints can connect to systems that handle regulated information.
CMMC compliance requires security controls spanning multiple domains, including access control, audit and accountability, system integrity, and incident response. Organizations must demonstrate that safeguards are implemented and consistently enforced. Portnox Cloud supports these requirements by enforcing identity-based access decisions, monitoring endpoint posture, and providing centralized policy enforcement that reduces risk and improves compliance readiness.
Access control is a core pillar of CMMC compliance, and Portnox Cloud helps enforce it by verifying identity and device posture before granting access. Policies can be applied consistently across wired, wireless, and remote environments to ensure only authorized users and compliant devices reach protected resources. This reduces unauthorized access risk and strengthens accountability across the environment.
CMMC compliance depends on knowing what endpoints exist in your environment and what risk they introduce. Portnox Cloud provides continuous device discovery and profiling, including managed devices, BYOD, and IoT. This visibility helps teams reduce blind spots, identify unauthorized endpoints, and enforce access policies with confidence—especially across distributed networks and multi-site environments.
Yes. Portnox Cloud supports CMMC compliance goals related to system integrity by continuously evaluating endpoint posture and enforcing access decisions based on risk. If a device is non-compliant or insecure, Portnox can restrict or deny access until policy requirements are met. This helps reduce exposure from unpatched, misconfigured, or vulnerable endpoints that could compromise sensitive systems.
CMMC compliance is not a one-time checkbox—it requires continuous enforcement, monitoring, and improvement over time. Organizations must maintain security controls and demonstrate they remain effective as environments change. Portnox Cloud supports ongoing CMMC compliance by providing real-time visibility, centralized access policy enforcement, and continuous posture evaluation to help teams stay audit-ready without heavy operational overhead.

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