NIST IT Audit Services

A NIST IT audit is an independent assessment of information security controls and practices against a relevant NIST framework, standard, or set of requirements.

The term “NIST IT audit” can refer to different types of assessments depending on the business and the framework involved. A company may use NIST SP 800-171 to evaluate protections for Controlled Unclassified Information, NIST SP 800-53 to assess a defined catalog of security and privacy controls, or the NIST Cybersecurity Framework 2.0 to evaluate and manage cybersecurity risk at a wider level.

The purpose of the assessment is to determine whether security controls and processes meet the applicable requirements, identify gaps, and establish priorities for improvement.

NIST SP 800-53A provides assessment procedures that organizations can tailor to evaluate security and privacy controls within a risk management framework.

Businesses often use the terms “NIST audit,” “NIST assessment,” and “NIST compliance assessment” interchangeably. The scope can differ considerably.

A NIST IT audit generally focuses on evaluating whether defined controls, policies, procedures, and technical controls meet the applicable requirements. A larger NIST cybersecurity assessment can also examine risk management, governance, architecture, business impact, and the effectiveness of the cybersecurity program.

Before testing begins, our consultants work with you to set the right assessment scope. This ensures you know exactly what we will review and the reasons behind it.

The appropriate NIST framework depends on what your business does, the information it handles, contractual requirements, regulatory obligations, technologies in use, and the security outcomes you need to achieve. In some cases, a business may benefit from using more than one NIST framework because each addresses a different aspect of cybersecurity, information security, or artificial intelligence risk.

NIST SP 800-171 Assessments: NIST SP 800-171 focuses on protecting Controlled Unclassified Information (CUI) within nonfederal systems. Defense contractors and other businesses that handle CUI may need to meet the requirements of NIST SP 800-171 as part of contractual or regulatory obligations.

Tanner Security can evaluate your implementation of NIST SP 800-171 requirements, identify security gaps, and help your business prepare for CMMC requirements.

NIST SP 800-53 Assessments: NIST SP 800-53 provides a comprehensive catalog of security and privacy controls. Businesses can use the control catalog as part of a structured security assessment and risk management program.

NIST SP 800-53A provides assessment procedures for evaluating those controls and emphasizes tailoring assessment procedures to the specific system and risk environment.

NIST Cybersecurity Framework 2.0 Assessments: NIST CSF 2.0 provides a flexible, high-level structure for understanding, assessing, prioritizing, and communicating cybersecurity risk. The current framework includes six Functions: Govern, Identify, Protect, Detect, Respond, and Recover.

CSF 2.0 does not prescribe specific technology or set of controls. Instead, it provides cybersecurity outcomes that businesses can use to evaluate current practices, set targets, and develop a practical roadmap for improving cybersecurity.

NIST AI Risk Management Framework Assessments: The NIST AI Risk Management Framework (AI RMF) helps businesses identify, assess, and manage risks associated with artificial intelligence. The framework addresses AI throughout its lifecycle and focuses on four core functions: Govern, Map, Measure, and Manage.

Businesses can use the NIST AI RMF to evaluate risks associated with generative AI, machine learning systems, AI-enabled applications, third-party AI services, and other artificial intelligence technologies. The framework can help businesses establish AI governance, improve accountability, evaluate potential impacts, and develop safeguards for responsible AI adoption.

Tanner Security can help your business determine which NIST framework or combination of frameworks best fits your technology environment, regulatory requirements, and business objectives.

A NIST assessment evaluates much more than technical issues.

Our consultants may review identity and access management, privileged accounts, endpoint security, network architecture, cloud environments, vulnerability management, configuration management, security monitoring, logging, incident response, backup and recovery, security awareness, vendor risk, policies, procedures, and governance.

The exact assessment scope depends on the NIST framework and the objectives of the engagement.

We focus on making sure your controls truly reduce risk so your business can show they work correctly.

Documentation alone cannot demonstrate that every security control works.

Where appropriate, our consultants validate controls through technical testing, configuration review, evidence examination, interviews, and other assessment procedures. NIST SP 800-53A specifically provides a methodology for assessing security and privacy controls and analyzing assessment results within a risk governance context.

Technical testing shows whether your documented controls work in practice, not just on paper.

Businesses that support the Department of Defense often use NIST SP 800-171 assessments as part of their CMMC preparation.

A NIST SP 800-171 assessment can help identify gaps in the 110 security requirements that form the basis for CMMC Level 2. However, a NIST assessment and a formal CMMC assessment are not the same engagement.

Tanner Security can help businesses evaluate NIST SP 800-171 implementation, identify remediation priorities, improve documentation, and prepare for the next stage of the CMMC process.

A NIST assessment should support business risk management rather than operate as a standalone compliance exercise.

NIST CSF 2.0 explicitly connects cybersecurity risk management with larger enterprise risk management and provides businesses with a common way to communicate cybersecurity priorities.

Tanner Security helps leadership turn technical findings into business risks. This approach helps decision-makers see which issues need immediate attention, which risks the company can accept, and where extra investment will reduce risk the most.

The cost of a NIST IT audit depends on the framework, assessment scope, number of systems, business complexity, number of locations, documentation maturity, and level of technical validation required.

The current Tanner Security pricing guidance provides a useful starting point: smaller environments typically fall in the $8,000–$15,000 range, mid-sized businesses commonly fall between $15,000 and $35,000, and companies with complex IT systems can exceed $35,000. Actual pricing depends on the specific scope of the engagement.

A well-planned assessment can save money by focusing on testing the systems and controls that matter most to your business.

Tanner Security brings more than two decades of cybersecurity consulting experience to NIST assessments. Our team works across cybersecurity risk assessment, penetration testing, IT audits, compliance, cloud security, governance, and enterprise risk management.

This broad experience is important because a NIST assessment should not stand alone. Security controls are linked to business processes, identity systems, cloud environments, vendors, incident response, and executive risk decisions.

We take a hands-on approach to validation. When more than a document review is needed, we check technical evidence and test controls to see if they work as intended.

Our existing client feedback reinforces this approach. Brad B., a company president, specifically praised Tanner Security for customizing its services and providing qualified professionals who exceeded expectations.

A NIST assessment gives your company more than a compliance report. It provides an objective view of cybersecurity risk, highlights control gaps, supports regulatory and contract needs, and gives your leadership a clear plan for improvement.

Contact Tanner Security today to schedule a NIST IT Audit. Learn where your cybersecurity program stands, what needs attention, and how to move forward.

A NIST assessment often identifies opportunities that require additional security testing, compliance support, or risk management services. Tanner Security provides a broad range of services that can complement a NIST IT audit.

CMMC Assessment and Readiness Services help defense contractors evaluate NIST SP 800-171 requirements, address compliance gaps, and prepare for CMMC assessments.

NIST Cybersecurity Framework Consulting helps businesses use CSF 2.0 to assess cybersecurity maturity, establish target outcomes, and build a practical cybersecurity improvement roadmap.

IT Risk Assessment Services provide a larger evaluation of technology risks and help leadership prioritize IT security investments based on business impact.

IT Audit Services provide an independent evaluation of IT governance, security controls, technology processes, and operational effectiveness.

Governance, Risk, and Compliance Consulting helps businesses connect cybersecurity, risk management, governance, and regulatory requirements into an IT security program.

Network Vulnerability Assessments identify known vulnerabilities, unpatched software, exposed services, and configuration weaknesses across your technology environment.

Network Penetration Testing validates whether vulnerabilities and weaknesses can actually be exploited by a real-world attacker.

Cloud Risk Assessment and Penetration Testing evaluates AWS, Microsoft Azure, Microsoft 365, Google Cloud, and hybrid environments.

IT Policy Development helps businesses develop practical policies and procedures that align with NIST requirements, security governance, and day-to-day operations.

Together, these services help your business move from finding cybersecurity gaps to putting solutions in place, making sure they work, and continuing to improve.

Businesses often use the terms NIST IT audit and NIST cybersecurity assessment interchangeably, but the scope can vary.

A NIST IT Audit typically evaluates whether defined security controls, policies, procedures, and technical safeguards meet specific NIST requirements. The audit focuses on evidence, control implementation, effectiveness, and identified gaps.

A NIST Cybersecurity Assessment can take a larger view of the cybersecurity program. In addition to auditing controls, it may evaluate cybersecurity governance, risk management, business objectives, technology dependencies, and the company’s ability to prevent, detect, respond to, and recover from cybersecurity incidents.

NIST CSF 2.0 provides a high-level framework for reviewing and communicating cybersecurity risk, while publications such as NIST SP 800-53 and SP 800-171 provide more specific security requirements or control catalogs.

A useful way to think about the difference is that a NIST IT audit asks, “Are our defined controls implemented and working?” A larger cybersecurity assessment asks, “How effectively does our cybersecurity program manage the risks that matter to our business?”

Tanner Security can help determine which assessment approach fits your business and can combine framework assessments, technical validation, vulnerability assessments, penetration testing, and risk management services when the engagement requires a larger evaluation.