# Education

URL: https://edu.chainguard.dev/software-security.md

## Pages

- [What are Containers?](https://edu.chainguard.dev/software-security/what-are-containers.md): An overview of the structure, contents, and applications of container technology
- [Selecting a Base Container Image](https://edu.chainguard.dev/software-security/selecting-a-base-image.md): How to choose more secure container base images: essential criteria including CVE count, SBOM availability, update frequency, and why Chainguard excels in each category
- [What is software supply chain security](https://edu.chainguard.dev/software-security/what-is-software-supply-chain-security.md): What is software supply chain security and why it matters: protect against attacks like SolarWinds with tools like Chainguard's SLSA-compliant containers and SBOMs
- [Chainguard Glossary](https://edu.chainguard.dev/software-security/glossary.md): Software supply chain security vocabulary
- [What Is a Build Horizon?](https://edu.chainguard.dev/software-security/build-horizon.md): What a build horizon is and why enforcing maximum artifact age is a key practice for keeping software secure and up to date
- [Chainguard Trademark Use Policy](https://edu.chainguard.dev/software-security/trademark.md): Understanding the Chainguard Trademark Use Policy