SMB - Defense Industrial Base (DIB)

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DIB-Specific Resources

General Resources Applicable to All SMBs


Small and medium-sized businesses (SMBs) within the Defense Industrial Base (DIB) are critical in supporting national security and defense initiatives. However, they face unique cybersecurity challenges and compliance obligations to safeguard sensitive information and maintain operational resilience.

DIB SMBs must prioritize cybersecurity measures tailored to their specific needs and operational environment to address these challenges effectively.

Protection Needs

Compliance with DFARS

SMBs in the DIB are subject to the Defense Federal Acquisition Regulation Supplement (DFARS), which imposes cybersecurity requirements on contractors and subcontractors handling controlled unclassified information (CUI) or supporting Department of Defense (DoD) contracts. DFARS compliance typically involves implementing cybersecurity controls outlined in the National Institute of Standards and Technology (NIST) Special Publication 800-171, which focuses on protecting sensitive information stored in nonfederal systems and organizations.

Cybersecurity Needs and Concerns

SMBs in the DIB must address a range of cybersecurity needs and concerns to enhance their resilience against cyber threats. These include safeguarding personal information, ensuring safe online experiences, protecting against cyber threats, securing devices and networks, promoting responsible online behavior, and maintaining up-to-date architecture diagrams with all hardware and software inventories.

Additional Cybersecurity Measures

Besides DFARS compliance and addressing fundamental cybersecurity needs, SMBs in the DIB should implement additional cybersecurity measures to enhance their defense against evolving threats. This includes patching and configuring security settings on all devices and software, employing active defenses for known attack vectors, monitoring network and device activity logs for anomalous behaviors, employing multi-factor authentication, implementing email and browser defenses, deploying malware protection on networks, encrypting data at rest and in transit, training staff to avoid and respond to suspicious events, and having contingency plans in place.

Software Bill of Materials (SBOM)

An important cybersecurity tool recommended by organizations such as the Cybersecurity and Infrastructure Security Agency (CISA) is the Software Bill of Materials (SBOM). An SBOM provides a structured inventory of software components, dependencies, and third-party software used in building a software product. It enhances transparency and visibility into software supply chains, helping organizations better understand and manage potential security risks.


In summary, SMBs within the Defense Industrial Base must adopt a proactive and multi-layered approach to cybersecurity, incorporating compliance with DFARS requirements, addressing fundamental cybersecurity needs, implementing additional cybersecurity measures, and leveraging tools such as SBOMs to enhance transparency and resilience within their supply chains.