Questions about the Secrets poster

What’s on the Secrets poster?

14 entries in 3 groups. Practices that prevent the majority of credential leaks. Never: Commit secrets to a repository, Put them in front-end code, Log them, even at…; Instead: Environment variables or a secret manager, .env in .gitignore, .env.example…; When one leaks: Revoke first, investigate after, Rotate everything it could reach, Ch…. Public repositories are scanned continuously. A committed key is typically abused within minutes, not days.

Who is the Secrets poster for?

Secrets belongs to the Computing section rather than to a school year, because computing is not something one grade owns. Anyone learning security can pin it up — a beginner, a student mid-course, or someone revising years later.

When should you use the Secrets poster?

Assume any secret committed to git is compromised, even in a deleted commit. Rotate it. A wall chart earns its place by being glanceable from where the work is happening, so Secrets belongs on the wall where that computing work actually happens, within glancing distance, rather than filed away.

What other posters go with Secrets?

AuthN vs AuthZ, Hashing vs Encryption and HTTPS & TLS sit alongside Secrets in the Computing section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.AuthN vs AuthZHashing vs EncryptionHTTPS & TLS

Is the Secrets poster free to download and print?

Yes. Secrets downloads as a free PDF with no account, no email and no watermark, like everything else in the Computing section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence

What size does the Secrets poster print at?

Secrets is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Secrets loses nothing.Printing guide