Part Five – How RegDOX’s CCE Meets Access Control Requirements in NIST 800-171

One of the foundational principles of NIST 800–171 Rev. 3 is ensuring that Controlled Unclassified Information (CUI) is appropriately safeguarded, particularly by implementing strict access control measures. RegDOX’s Compliant Cloud Environment (CCE) is designed to meet and exceed these stringent standards. Below, we examine how CCE aligns with essential access control requirements in NIST 800–171:

Role–Based Access Control (RBAC) – NIST 800–171 mandates that access to systems and information be restricted based on the principle of least privilege, ensuring that users have only the minimum access necessary to perform their duties (Requirement 03.01.05). RegDOX’s CCE uses RBAC to restrict user access to CUI based on clearly defined organizational roles. These restrictions mean that users can access only the information pertinent to their job functions, reducing the risk of unauthorized access.

Account Management – NIST 800–171 also requires organizations to manage and monitor system accounts to prevent unauthorized use (Requirement 03.01.01). RegDOX’s CCE automates the management of user accounts, ensuring that only authorized users can create, modify, or delete accounts. User access is continuously monitored, and automatic notifications are sent when an account is no longer required or has been inactive for a specified period. This feature helps maintain the integrity of account access over time.

Separation of Duties – Ensuring that critical functions are divided among individuals to prevent fraud and errors is another critical access control requirement (Requirement 03.01.04). In CCE, system access is designed to separate administrative and user functions. This separation ensures that no single user can perform high–risk tasks independently, reducing the risk of malicious actions and improving internal controls.

Multi–Factor Authentication (MFA) – To prevent unauthorized system access, NIST 800–171 recommends strong authentication measures (Requirement 03.01.12). RegDOX’s CCE employs multi–factor authentication for all remote access, requiring users to verify their identity through multiple methods before granting access to CUI. This authentication protocol significantly strengthens the protection against unauthorized access and reduces the likelihood of credential–based attacks.

Information Flow Enforcement – Controlling how information flows between systems are another essential aspect of access control (Requirement 03.01.03). RegDOX’s CCE enforces strict policies to regulate the transfer of CUI between different systems and networks, ensuring that sensitive data remains secure throughout its lifecycle. Information flow policies also prevent unauthorized external communications, protecting CUI from being exposed outside the organization.

By adhering to these access control requirements, RegDOX’s CCE ensures compliance with NIST 800–171 and provides enhanced security for CUI. Robust access management, authentication controls, and continuous monitoring capabilities help safeguard data, mitigating risks and protecting sensitive information from unauthorized access.

In our next post, we’ll explore RegDOX’s CCE’s performance and scalability features and how they contribute to the secure and efficient handling of CUI.