Supply Chain Cybersecurity
SBOM (Software Bill of Materials) Explained: Why It Matters
An SBOM (Software Bill of Materials) is a machine-readable inventory of every component in a piece of software — including open-source libraries, versions, and dependencies. SBOMs enable faster vulnerability response, supply chain transparency, and regulatory compliance. Standard formats include SPDX and CycloneDX.
Andreas Johansson · Chief Executive Officer
Senior IT management leader with 25 years of experience in Cloud, Security, and Datacenter infrastructure.
What an SBOM Is
An SBOM lists every component in your software: libraries, frameworks, versions, licenses, and dependency relationships. Think of it as an ingredient list for software.
Why SBOMs Matter
- Vulnerability response: When a new CVE drops (like Log4Shell), an SBOM tells you instantly if you're affected
- Supply chain transparency: Know what's inside software you buy or build
- Regulatory compliance: US Executive Order 14028 and EU Cyber Resilience Act increasingly require SBOMs
- License management: Track open-source license obligations
Standard Formats
- SPDX (Software Package Data Exchange) — Linux Foundation standard
- CycloneDX — OWASP standard, widely adopted for security use cases
How to Generate SBOMs
- Build-time generation (most accurate)
- Source code analysis
- Binary/container analysis
- Software Composition Analysis (SCA) tools
SBOM Best Practices
- Generate at build time and store with each release
- Update when dependencies change
- Use standard formats for interoperability
- Integrate with vulnerability databases for continuous matching
- Require SBOMs from vendors for critical software
How SeqOps fits
SeqOps finds known vulnerabilities in the software installed on your servers, including third-party components, and shows which to patch first. It doesn't assess your vendors.