NAIC Insurance Data Security Model Law (MDL-668)

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Overview
The NAIC Insurance Data Security Model Law (MDL-668) is a regulatory framework that establishes data security requirements for insurance companies and related entities to protect consumer information and reduce cybersecurity risks. Its purpose is to drive adoption of effective cybersecurity programs and incident response processes within the insurance sector.
Published by the National Association of Insurance Commissioners (NAIC), this model law is adopted by U.S. state insurance regulators seeking to enhance data protection, risk management, and regulatory compliance across insurers, agents, and other licensees. The law addresses areas including cybersecurity controls, risk assessments, oversight of third-party service providers, breach notification, and ongoing compliance obligations.
Insurance organizations implement the NAIC Model Law by developing written information security programs, conducting regular risk assessments, monitoring internal controls, training staff, and reporting security incidents when required. The law aligns with broader U.S. data protection and cybersecurity frameworks, helping insurers strengthen compliance, reduce regulatory risk, and build customer trust.
Why it Matters
The NAIC Insurance Data Security Model Law establishes consistentstandards to help insurers safeguard consumer data and reduceevolving cybersecurity risks.
Key benefits include:
- Strengthen information security governance
Drive adoption ofdocumented cybersecurity programs, oversight, and risk managementacross insurance organizations and their third-party serviceproviders.
- Enhance regulatory compliance
Facilitateadherence to state-level data security obligations, reducingregulatory risk and streamlining compliance reporting to insuranceregulators.
- Improve breach response capabilities
Establishincident response practices and notification procedures, enablingprompt detection, containment, and reporting of security breaches.
- Protect consumer information
Mandate securitycontrols that reduce the risk of data compromise, helping safeguardsensitive personal and financial data entrusted to insurers.
- Increase audit and readiness
Require regularrisk assessments and documentation, supporting better audit outcomesand organizational readiness for evolving cybersecurity threats.
How it Works
The NAIC Insurance Data Security Model Law (MDL-668) establishes astructured approach for safeguarding sensitive insurance data througha set of regulatory requirements and security safeguards. It outlinesrequirements for risk assessment, development of comprehensiveinformation security programs, and implementation of administrative,technical, and physical security controls. The framework also setsout governance responsibilities, incident response procedures,ongoing monitoring, and regulator notification obligations, providinga lifecycle-based structure for ongoing data protection andcompliance.
In operational practice, insurance companies and relatedorganizations conduct risk assessments to identify threats tononpublic information and then implement security controls alignedwith the Model Law’s provisions. They regularly review and updatetheir cybersecurity policies, provide employee training, monitorsystems for unauthorized activity, and prepare incident responseplans. Periodic compliance assessments and required notifications tostate insurance regulators ensure that governance and compliancestandards are maintained.
Using SmartSuite, organizations can operationalize the NAIC Model Lawby leveraging integrated control libraries, maintaining a riskregister, and tracking policy governance across business units.SmartSuite supports evidence collection, compliance monitoring, auditreadiness, and remediation workflows. Reporting dashboards providereal-time visibility into control effectiveness and regulatorycompliance for ongoing data security management.
Key Elements
- Information Security Program Requirements
Specifiescriteria for comprehensive, written cybersecurity programs tailoredto the organization’s business and risk environment.
- Risk Assessment Processes
Describesprocedures for evaluating internal and external cyber threats,vulnerabilities, and business impact.
- Third-Party Service Provider Oversight
Outlinesexpectations for managing and reviewing the security practices ofexternal vendors and business partners.
- Incident Response Planning
Definesstructural requirements for preparing, detecting, and responding tocybersecurity incidents that affect sensitive information.
- Ongoing Compliance and Reporting
Establishesobligations for routine monitoring, staff training, and reporting ofcyber events to regulatory authorities.
- Access and Data Controls
Organizescontrols around restricting access, managing authentication, andsafeguarding protected data assets.
Framework Scope
The NAIC Insurance Data Security Model Law (MDL-668) is adopted byinsurance companies, agents, and third-party service providersmanaging consumer information. It governs information securityprograms, breach response processes, and oversight of data systems,typically when organizations are meeting state-level regulatoryrequirements and strengthening cybersecurity risk management andongoing compliance programs.
Framework Objectives
The NAIC Insurance Data Security Model Law (MDL-668) establishesfoundational requirements to advance cybersecurity, risk management,and regulatory compliance in the insurance industry.
Safeguard sensitive consumer data through robust security controlsand oversight
Strengthen cybersecurity risk management and reduce exposure toemerging threats
Promote effective governance across insurance organizations andlicensed entities
Support ongoing regulatory compliance and readiness for auditprocesses
Enhance operational resilience and incident response capabilities
Ensure comprehensive oversight of third-party service providersecurity practices The NAIC Insurance Data Security Model Law(MDL-668) aligns closely with frameworks like NIST CybersecurityFramework, GLBA, and the FFIEC IT Examination Handbook. Insuranceorganizations typically implement this model law to meet regulatorydata protection obligations, ensure robust cybersecurity practices,and harmonize risk management efforts with broader industrystandards.
Framework in Context
The NAIC InsuranceData Security Model Law (MDL-668) aligns closely with frameworks likeNIST Cybersecurity Framework, GLBA, and the FFIEC IT ExaminationHandbook. Insurance organizations typically implement this model lawto meet regulatory data protection obligations, ensure robustcybersecurity practices, and harmonize risk management efforts withbroader industry standards.
Common Framework Mappings
NAIC Insurance Data Security Model Law is often mapped to otherwell-established cybersecurity and data protection frameworks tosupport regulatory harmonization, facilitate risk management, andstreamline audit processes across jurisdictions.
Mapped frameworks include:
CIS Critical Security Controls
Digital Operational Resilience Act (DORA)
FFIEC IT Examination Handbook
Gramm-Leach-Bliley Act (GLBA)
ISO/IEC 27001
NIST Cybersecurity Framework
NIST SP 800-53
SOC 2 / AICPA Trust Services Criteria
- ClassificationCategoryData Protection & PrivacyDomainCybersecurityFramework FamilyOther
- Regulatory ContextTypeFrameworkLegal InstrumentLawSectorFinancial SectorIndustryInsurance
- Region / PublisherRegionNorth AmericaRegion DetailUnited StatesPublisherNational Association of Insurance Commissioners (NAIC)
- VersioningVersionNAIC Model Law 668Effective Date2017Issue DateDecember 2017
- AdoptionAdoption ModelRegulatory ComplianceImplementation ComplexityHigh
- Official ReferenceOpen Link in New TabSource
License included / downloadable: Yes
The NAIC Insurance Data Security Model Law is publicly available through the National Association of Insurance Commissioners.
How SmartSuite Supports NAIC Insurance Data Security Model Law (MDL-668)
Centralize controls, evidence, and audit workflows to stay continuously SOC 2–ready.
Security Program Requirements Library
Organize governance, risk assessment, safeguards, and oversight requirements.
Risk Assessments and Treatment Plans
Run periodic risk assessments and track mitigation actions through closure.
Vendor Due Diligence and Contract Management
Manage vendor due diligence, contract requirements, and ongoing monitoring.
Incident Response and Notification Workflow
Track cybersecurity events, escalation decisions, and reporting readiness.
Evidence and Examination Readiness
Centralize policies, training, testing, and operating evidence tied to requirements.
Board and Leadership Reporting
Provide program status, open issues, and risk posture reporting for governance.
Related frameworks

CIS Controls v8.1 provides prioritized, practical security actions to help organizations mitigate common cyber threats and strengthen defenses.

The GLBA Safeguards Rule requires financial institutions to implement security programs to protect consumer financial information.

ISO/IEC 27001:2022 is an international ISMS standard that helps organizations manage information security risks and protect data.

ISO/IEC 27701 extends ISO/IEC 27001 to help organizations manage privacy and protect personally identifiable information.

NIST Cybersecurity Framework (CSF) v2.0 is a risk-based framework that helps organizations manage and reduce cybersecurity risks.
Frequently Asked Questions For NAIC Insurance Data Security Model Law (MDL-668)
The NAIC Insurance Data Security Model Law is designed to establish data security standards for insurance companies and related entities. Its primary purpose is to protect consumer information and mitigate cybersecurity risks within the insurance sector by mandating robust data protection programs and incident response processes.
Compliance becomes mandatory when a U.S. state adopts the NAIC Model Law into its own insurance regulations. Insurers, agents, and other licensed entities operating in those states must adhere to the specific requirements set forth by the adopted version of the law.
The law applies to all insurance licensees, including insurers, agents, brokers, and certain third-party service providers that handle nonpublic consumer information. Its scope covers any entity regulated by state insurance departments that has access to sensitive customer data.
Key requirements include developing and maintaining a written information security program, conducting periodic risk assessments, implementing appropriate cybersecurity controls, managing third-party risk, and establishing breach notification processes. Assigning clear governance responsibilities to senior leadership is also required.
Organizations should start by conducting a comprehensive risk assessment to identify cybersecurity threats and vulnerabilities. Based on this assessment, they must implement appropriate safeguards, train personnel, monitor controls, update policies regularly, and prepare formal incident response and notification procedures.
The NAIC Model Law aligns with broader U.S. data protection standards, such as those outlined by NIST and state-level privacy laws, but is tailored specifically for the insurance industry. It complements existing frameworks by focusing on regulatory oversight, sector-specific requirements, and integration with state insurance regulations.
Ongoing compliance requires regular review and updating of the information security program, continuous risk assessment, staff training, monitoring of internal and third-party controls, and timely incident reporting to regulators. Organizations must maintain documentation as evidence of their ongoing adherence to the law.
SmartSuite helps organizations operationalize NAIC MDL-668 by mapping legal requirements to policies and controls, managing and tracking cybersecurity risk assessments, monitoring vendor risk, collecting compliance evidence, and automating reporting. These capabilities support audit readiness and streamline ongoing compliance management for insurance organizations.
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