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indexFoundations#cybersecurity#foundations#index#phase-0

Foundations Index — Phase 0

Purpose

This index is the first thing a learner should read in the atlas. It exists because every other branch assumes a learner already thinks security-first. Phase 0 builds that mindset before any technical branch is opened.

Return to Cybersecurity Index for navigation across branches.

Who this branch is for

  • IT person who has never thought about security as a discipline.
  • Developer who has been told to "do security" and isn't sure what that means.
  • Senior engineer rebuilding the basics deliberately.
  • Anyone who has confused "I know Wireshark" with "I understand security."

If you already think in CIA-triad terms, threat-modeling reflexes, and offense/defense pairing, skim this branch and move to Networking.

Phase 0 — Orientation

  1. what-is-cybersecurity-and-why-it-is-not-a-tool-list
  2. cia-triad-and-what-it-actually-decides
  3. threat-modeling-quickstart
  4. attacker-defender-duality-as-a-learning-tool
  5. minimum-viable-cybersecurity-literacy
  6. job-context-specialization
  7. certifications-as-validation-signals

After the first four orientation notes, use notes 5-7 when choosing a learning path, specialty track, or certification sequence. Then proceed to Phase 1 — Substrate, starting with Networking (the new Phase 1 order is Networking → Web Security → Cryptography; see index for the migration trail).

Branch conventions

Phase 0 notes are framework notes, not technical notes. They differ from atomic notes in other branches in two ways:

  • They teach how to reason, not what a vulnerability is. So they skip the "Variants and bypasses" and "Practical labs" sections of the atomic-note template, and instead use "Common misconceptions" and "How to apply this".
  • They do not need a dedicated reference-registry-foundations.md. References are framework documents (NIST CSF, OWASP, Microsoft threat-modeling guidance) and are listed directly in each note's ## References section.

If the branch grows past ~6 notes, a registry should be added.

Phase 0 notes are intended to be cross-linked from the first note of every branch index (a "Before this branch" entry), giving every learner a reachable path back to the framework.