Building Cyber Resilience with a CIS Controls Maturity Assessment

Cybersecurity weaknesses do not always result from a lack of technology. In many organizations, the bigger challenge is knowing whether existing security controls are consistently implemented, properly documented, and working as intended.

Unmanaged assets, excessive user privileges, inconsistent system configurations, delayed patching, and gaps in security monitoring can expose an organization to unnecessary risk. Even companies that have invested significantly in cybersecurity tools may have limited visibility into how well their overall security program performs.

That makes cybersecurity maturity a business issue, not simply an IT issue. A security incident can affect operations, customer relationships, contractual obligations, regulatory compliance, and reputation.

A CIS Controls Maturity Assessment gives organizations a structured way to evaluate their cybersecurity program against a recognized framework, identify meaningful gaps, and establish priorities for improvement.

What Are the CIS Critical Security Controls?

The CIS Critical Security Controls, or CIS Controls, are a prioritized set of cybersecurity safeguards developed by the Center for Internet Security (CIS) to help organizations defend against prevalent cyberattacks.

The current CIS Controls v8.1 framework contains 18 Controls supported by specific Safeguards. The framework addresses areas including:

• Enterprise and software asset management
• Data protection
• Secure configuration
• Account and access control management
• Vulnerability management
• Audit log management
• Email and web browser protections
• Malware defenses
• Data recovery
• Network infrastructure management
• Security awareness and skills training
• Service provider management
• Incident response
• Penetration testing

Rather than requiring every organization to adopt the same safeguards at once, CIS organizes its recommendations into three Implementation Groups, or IGs.

IG1: Essential Cyber Hygiene

CIS describes Implementation Group 1 as “essential cyber hygiene.” It provides the foundational safeguards every organization should consider implementing to defend against common attacks.

IG2: Greater Complexity and Risk

IG2 builds on the safeguards included in IG1. It is generally designed for organizations with greater operational complexity, dedicated personnel responsible for managing technology, and increased responsibility for protecting sensitive information.

IG3: Advanced Security Requirements

IG3 includes the full set of CIS Controls safeguards and is intended for organizations with more sophisticated cybersecurity requirements, sensitive or regulated information, and greater exposure to targeted attacks.

The appropriate Implementation Group depends on an organization’s size, complexity, resources, data, technology, threat environment, and overall risk profile.

What Is a CIS Controls Maturity Assessment?

A CIS Controls Maturity Assessment evaluates how an organization’s cybersecurity safeguards align with the CIS Controls and how consistently those safeguards operate in practice. It provides a broader perspective than a vulnerability scan or penetration test.

A vulnerability scan focuses primarily on identifying technical weaknesses. A penetration test attempts to determine whether certain weaknesses can be exploited. A maturity assessment examines the broader environment surrounding those technologies, including policies, governance, processes, responsibilities, supporting evidence, and ongoing control execution.

HBK’s Risk Advisory Services approach can include:

• Stakeholder interviews: Discussions with IT, security, operational, and business leaders to understand current responsibilities and practices.
• Policy and procedure review: Evaluation of documented cybersecurity requirements and whether they reflect actual practices.
• Technical evidence validation: Review of relevant evidence to determine whether safeguards are operating as described.
• Control mapping and analysis: Alignment of security practices with applicable CIS safeguards and, where relevant, other cybersecurity or compliance frameworks.
• Gap identification: Identification of controls that are missing, inconsistently implemented, insufficiently documented, or otherwise require improvement.
• Risk-based recommendations: Prioritization of remediation activities according to organizational risk and business impact.
• Executive reporting: Clear communication of findings, priorities, and recommendations to leadership.

The result is a clearer picture of the organization’s current cybersecurity posture and a practical roadmap for strengthening it.

What Are the Benefits of a CIS Controls Maturity Assessment?

Establish a Recognized Cybersecurity Baseline

Cybersecurity programs often develop gradually. A company may add multifactor authentication after one event, strengthen backups after another, and deploy additional monitoring tools in response to a customer requirement.

Individual improvements can be valuable, but they do not necessarily create a complete security program. A CIS Controls Maturity Assessment creates a structured baseline that helps management understand what has been addressed, what remains incomplete, and where future investments should be focused.

Identify Security Gaps Before They Become Incidents

A security control can exist on paper without being consistently implemented. For example, an organization may require multifactor authentication but discover that certain administrative accounts or legacy systems are excluded. Another organization may maintain an asset inventory that does not include cloud resources, remote devices, or newly deployed software.

A maturity assessment is designed to uncover these gaps before they contribute to a security incident or business disruption.

Support SOC 2 Readiness

Organizations pursuing a SOC 2 examination often need to strengthen policies, procedures, technical controls, documentation, and evidence collection before beginning the formal examination process. The CIS Controls can provide a useful foundation for this work.

CIS maintains a formal mapping between CIS Controls v8.1 and the AICPA Trust Services Criteria used in SOC 2 engagements. That relationship can help organizations identify areas where existing CIS-based security practices correspond with SOC 2 criteria and where additional controls, documentation, or evidence may be required.

A CIS Controls Maturity Assessment does not replace a SOC 2 readiness assessment or SOC 2 examination. It can, however, help an organization establish stronger foundational security practices before moving further into the SOC 2 process.

HBK provides both cybersecurity assessment services and SOC readiness and reporting services, allowing organizations to evaluate their current security environment and understand additional steps required for SOC reporting.

Improve Leadership Visibility and Decision-Making

Senior leaders do not need another list of technical findings without context. They need to understand which risks matter, why they matter, and where resources should be directed. A maturity assessment can translate cybersecurity findings into priorities leadership can use to make informed decisions about budgets, staffing, technology, governance, and remediation. That is particularly valuable when organizations face competing cybersecurity investments or need to explain security priorities to boards, customers, insurers, or other stakeholders.

Common Cybersecurity Gaps Identified in Maturity Assessments

Every organization is different, but recurring improvement opportunities can include:

• Incomplete hardware, software, and cloud asset inventories
• Weaknesses in privileged access management
• Delays in disabling access when employees or contractors leave
• Inconsistent use of multifactor authentication
• Vulnerabilities that are identified but not prioritized according to risk
• Security events that are collected but not appropriately reviewed or escalated
• Inconsistent oversight of third-party service providers
• Data retention and disposal practices that do not align with established requirements
• Policies that do not accurately reflect current technology or business practices
• Incident response plans that have not been adequately tested

Finding these issues through an assessment gives the organization an opportunity to address them systematically rather than during an incident, customer review, or audit.

Why Organizations Should Evaluate Cybersecurity Maturity Now

Cybersecurity maturity requires ongoing attention. Technology changes. Employees come and go. Vendors are added. New applications move to the cloud. Attack techniques evolve. Regulatory and contractual requirements change.

A security program that was appropriate two years ago may no longer reflect an organization’s current technology environment. Organizations that wait for an audit finding, customer requirement, cyber insurance review, or security incident to expose weaknesses can find themselves addressing multiple issues under tight deadlines. A proactive assessment provides a different approach. It allows leadership to understand the current environment, establish priorities based on risk, and strengthen safeguards according to a deliberate

How HBK Can Help

HBK CPAs & Consultants’ Risk Advisory Services team helps organizations assess cybersecurity program design and effectiveness, identify gaps and vulnerabilities, and develop practical corrective action plans.

For organizations considering SOC 2, HBK also provides SOC readiness and reporting services to help determine scope, evaluate controls, identify deficiencies, and prepare for the examination process.

A clearer understanding of your current cybersecurity maturity gives leadership the information needed to make better risk decisions and prioritize improvements before outside pressure dictates the timeline.

To learn more about a CIS Controls Maturity Assessment or other cybersecurity and risk advisory services, contact Joel Van Horn, CPA/CITP, CISA, at JVanHorn@hbkcpa.com or Owen Bleibtrey, CISA, at OBleibtrey@hbkcpa.com.