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https://www.nist.gov/itl/executive-order-14028-improving-nations-cybersecurity/software-security-supply-chains-software

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Information Technology Laboratory

## Executive Order 14028,  Improving the Nation's Cybersecurity

-  Software Supply Chain Security Guidance  Expand or Collapse    -  Software Security in Supply Chains  Expand or Collapse      -  Guidance, Purpose, Scope, and Audience 
    -  EO-Critical Software and Security Measures for EO-Critical Software 
    -  Software Cybersecurity for Producers and Users  Expand or Collapse        -  Attesting to Conformity with Secure Software Development Practices 
    -  Software Verification 
    -  Evolving Standards, Tools, and Recommended Practices  Expand or Collapse        -  Software Bill of Materials (SBOM) 
      -  Enhanced Vendor Risk Assessments 
      -  Open Source Software Controls 
      -  Vulnerability Management 
    -  Additional Existing Industry Standards, Tools, and Recommended Practices 
    -  FAQs 
  -  Software Cybersecurity for Producers and Purchasers 
  -  Critical Software  Expand or Collapse      -  Critical Software Definition  Expand or Collapse        -  Introduction 
      -  Background & Approach 
      -  Definition & Explanatory Material 
      -  FAQs 
    -  Security Measures for Critical Software Use  Expand or Collapse        -  Introduction 
      -  Purpose & Scope 
      -  Security Measures for EO-Critical Software Use 
      -  FAQs 
  -  Software Verification  Expand or Collapse      -  Introduction 
    -  Background & Approach 
    -  Recommended Minimum Standard for Vendor or Developer Verification of Code 
    -  FAQs 
-  Cybersecurity Labeling for Consumers  Expand or Collapse    -  Consumer Cybersecurity Labeling Pilots: The Approach and Contributions 
  -  Workshops on Cybersecurity Labeling of Consumer Products 
  -  IoT Product Criteria 
  -  Consumer Software Criteria 
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-  Cybersecurity @ NIST 

# Software Security in Supply Chains: Software Cybersecurity for Producers and Users

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Section 4(e) of EO 14028 outlines 10 actions and outcomes to further secure software development. Since most subsections in this Appendix are specific to software producers and users, federal agencies that seek to implement those actions and achieve those outcomes should refer to SSDF V1.1 (see below).

A notable exception in NIST’s response to 4(e) is its Attesting to Conformity with Secure Software Development Practices, which – as the name implies – outlines minimum recommendations for agency purchasers to require attestations from software suppliers.

This guidance considers both SSDF V1.1 and Attesting to Conformity with Secure Software Development Practices within the context of existing C-SCRM standards, tools, and recommended practices for federal agency acquirers, as mandated in Sections 4(c) and 4(d) of EO 14028.

## Secure Software Development Framework (SSDF) Version 1.1

SSDF V1.1’s core set of high-level secure software development practices are fundamental for software producers and developers. They are also critical to federal agency acquirers seeking to use a common vocabulary with suppliers during acquisition and to augment their existing C-SCRM controls. The table below identifies likely areas of impact across supply chain acquisition and procurement activities.

### **Table F‐4: C-SCRM Control and SSDF V1.1 Crosswalk**

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**Content:**
                  -  Introduction 
                  -  Guidance, Purpose, Scope, and Audience 
                  -  EO-Critical Software and Security Measures for EO-Critical Software 
                  -  Software Cybersecurity for Producers and Users                      -  Attesting to Conformity with Secure Software Development Practices
                  -  Software Verification 
                  -  Evolving Standards, Tools, and Recommended Practices                      -  Software Bill of Materials (SBOM) 
                    -  Enhanced Vendor Risk Assessments 
                    -  Open Source Software Controls 
                    -  Vulnerability Management
                  -  Additional Existing Industry Standards, Tools, and Recommended Practices 
                  -  Frequently Asked Questions (FAQs) 

Information technologyCybersecurity

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