Security Guides
How do GitLab CI id_tokens work for cloud login?
GitLab CI id_tokens give a job a short signed token a cloud can verify. Learn aud, the sub format, ref_protected and why project_id beats names.
Oct 19, 20264 min read
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Can you revoke a departing employee's GitHub tokens? What owners can do
Org owners can view and revoke fine-grained GitHub tokens but not classic ones, and SSH keys made by a token keep working. Here is the leaver sequence.
Oct 19, 20264 min read
Security Guides
How should you set GITHUB_TOKEN permissions for fork pull requests?
Set the default GITHUB_TOKEN to read-only for repository contents, raise it per job, and know that fork pull requests get a read-only token regardless.
Oct 19, 20264 min read
Security Guides
What does the GitHub OIDC sub claim look like for each trigger?
The sub claim in GitHub's OIDC token changes with environment, branch, tag, and pull request jobs. See each format and how to write a tight trust rule.
Oct 19, 20264 min read
Security Guides
What do GitHub OAuth app access restrictions block in an org?
With restrictions on, members cannot authorize OAuth apps for org data and unapproved apps lose private access. Defaults, approval flow, what to check.
Oct 19, 20263 min read
Security Guides
How do GitHub environment approvals gate a Terraform apply?
GitHub environments can require reviewers, block self-review and limit branches before a deploy job runs. Setup steps for gating infrastructure applies.
Oct 19, 20264 min read
Security Guides
How do GitHub environments keep prod secrets from other branches?
Environment secrets reach only jobs that use the environment, after its rules pass. Add deployment branch rules and reviewers to guard production secrets.
Oct 19, 20264 min read
Security Guides
How do you set up GitHub Actions OIDC to Azure without a secret?
Set up a federated identity credential on a Microsoft Entra app so GitHub Actions can deploy to Azure with no stored secret. Steps, subjects, limits.
Oct 19, 20264 min read
Security Guides
Which GitHub Actions caches can a branch or fork pull request restore?
A run can restore caches from its own branch and the default branch, but not sibling branches. The scope rules, what they imply, and how to use them.
Oct 19, 20264 min read
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