Glossary
NIST CSF compliance refers to the adoption and implementation of the NIST Cybersecurity Framework (CSF), a voluntary but widely used risk management framework developed by the National Institute of Standards and Technology (NIST). The CSF provides a flexible, repeatable structure for identifying, protecting, detecting, responding to, and recovering from cybersecurity threats. Originally created for critical infrastructure, it is now applied across public and private sectors to improve cybersecurity maturity.
The NIST CSF is one of the most influential cybersecurity frameworks globally. It is used by energy utilities, transportation operators, financial services, manufacturers, and federal contractors to align cybersecurity practices with business objectives and regulatory expectations.
The framework is organized into five core functions:
Rather than prescribing specific technologies, NIST CSF encourages organizations to tailor controls based on risk, and to map their practices against implementation tiers and profiles for strategic alignment and continuous improvement.
Although voluntary, NIST CSF is often referenced in federal guidelines, procurement contracts, and compliance audits, and is complementary to frameworks like NIST 800-53, NIST 800-171, IEC 62443, and NIS2.
Xona supports multiple elements of the NIST CSF, especially within the Protect and Detect functions, by providing a secure, identity-based remote access platform built for operational technology (OT) and critical systems. Aligned with key CSF categories, Xona enables:
By operationalizing these controls through a purpose-built access platform, Xona helps organizations meet the technical requirements associated with NIST CSF compliance while reducing risk and improving cybersecurity maturity.
While the NIST Cybersecurity Framework (CSF) is voluntary, it is strongly recommended and widely adopted by critical infrastructure operators, including those in energy, transportation, and manufacturing, as a best-practice standard. It is also frequently referenced in procurement requirements, risk assessments, and audits conducted by federal or sector-specific regulators.
The framework is built around five core functions including Identify, Protect, Detect, Respond, and Recover, which are further broken down into categories and subcategories. These provide a flexible model for managing cybersecurity risks, aligning technical controls with organizational priorities, and measuring cybersecurity maturity through implementation tiers and profiles.
Xona supports core Protect and Detect functions by enabling secure, identity-based access control and real-time session visibility. It enforces policies aligned with categories such as Access Control (PR.AC), Identity Management (PR.AC-1 to PR.AC-7), Anomalies and Events (DE.AE), and Security Continuous Monitoring (DE.CM), helping organizations strengthen their cybersecurity posture.
Xona implements role-based, time-based access controls, paired with protocol isolation, multi-factor authentication and credential injection to eliminate password exposure. Every access session is tied to a verified user identity, ensuring that access to sensitive systems is limited, auditable, and aligned with least privilege principles.
Yes. Xona logs and records every user session in real time, providing detailed metadata and optional video playback of user activity. These logs can be integrated with external SIEM platforms and OT asset and threat detection systems, supporting DE.AE (Anomalies and Events) and DE.CM (Continuous Monitoring) categories for proactive threat detection and incident response.
By operationalizing access governance, monitoring, and auditability without requiring complex infrastructure changes, Xona helps organizations advance from reactive to proactive security postures which are key for achieving higher NIST CSF implementation tiers. It also facilitates continuous improvement through centralized visibility and data-driven oversight of remote and privileged access activity.
Originally published December 04, 2025