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Security Guides

Is the python alpine image a good choice for production services?

It can be, when size is the priority and your dependencies work on musl. The official docs warn about libc differences. A decision guide with a test plan.

Oct 19, 20264 min read
Security Guides

How do I use PURLs to check the quality of an SBOM I received?

Four quick PURL checks tell you how well an SBOM was built: coverage, versions, plausible types and qualifiers. Includes the seven parts and real examples.

Oct 19, 20264 min read
Security Guides

Do you need to purge the CDN cache after a security fix?

Often yes. A fix that is deployed but cached stays invisible to visitors. Steps to purge safely, verify the new files and handle old copies.

Oct 19, 20264 min read
Security Guides

Are pull request titles and branch names safe to use in workflows?

No. Titles, branch names and bodies come from the contributor. How script injection happens in workflows and the env variable pattern that prevents it.

Oct 19, 20263 min read
Security Guides

A pull request checklist for adopting a public CI template

Paste this checklist into the pull request that adds a public CI template. Twelve checks cover triggers, permissions, actions, secrets and owners.

Oct 19, 20264 min read
Security Guides

Pull or push vulnerability alerts: which fits your team?

Push alerts interrupt people when something changes. Pull views wait until someone looks. Match the mode to the severity and to who owns the fix.

Oct 19, 20263 min read
Security Guides

Public registry container images: ten security questions answered

Short answers to ten questions on pulling images from public registries: official versus community, badges, tags, digests, signatures, mirrors, caches.

Oct 19, 20264 min read
Security Guides

Public or gated: where should each security document live?

Decide which security documents go on a public page, behind a login, or behind an NDA, using three questions about audience, detail, and shelf life.

Oct 19, 20263 min read
Security Guides

Public or first party GraphQL API: which security controls apply?

A GraphQL API for your own apps can use allowlists and no introspection. A public one cannot. Compare controls for each case and pick a baseline.

Oct 19, 20264 min read

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