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Mahika, nervous and excited, stands outside CyberAI Hub's glass office entrance on her first morning, fresh visitor badge in hand.
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Cybersecurity for Juniors, Book 3

The Security Engineer's Playbook

Six months after her placement interview, Mahika starts her first job as a junior application security engineer. Alongside her manager, a DevOps engineer, a QA-turned-security engineer and a SOC analyst, she learns why application security is the foundation every other security career is built on, and how it connects cloud, DevSecOps, infrastructure, network and AI security into one map. Seventeen illustrated stories with real code, config and token corners.

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Chapters

17 chapters

  1. Welcome to the Blast RadiusKnow your blast radius before something breaks it
  2. Shift Left, or Get Left BehindThe cheapest bug is the one that's still a diagram
  3. Who Goes There, and What Are They Allowed to Do?Logged in and allowed to are two different questions
  4. The Secret That Outlived the FixDeleting a secret from the latest commit doesn't delete it · Getting published soon
  5. Every API Is a Promise Someone Will BreakAn old version doesn't retire itself · Getting published soon
  6. The Token That Knew Too MuchA token that can't expire is a key that never gets taken back · Getting published soon
  7. The Tool Nobody ApprovedSaying yes to a shortcut can mean saying yes to a stranger · Getting published soon
  8. The Pipeline That Shipped the Bug AnywayA scanner nobody listens to is the same as no scanner at all · Getting published soon
  9. The Bucket Everyone Forgot AboutA temporary fix that nobody schedules to undo becomes permanent · Getting published soon
  10. A Container Is Not a CastleA container only isolates what you actually configure it to · Getting published soon
  11. The Network That Trusted Everyone InsideBeing inside the network should never mean being trusted by default · Getting published soon
  12. Identity Is the New Perimeter"who is this, really, and what should they be allowed to do" is one question, everywhere · Getting published soon
  13. The Math That Keeps SecretsHidden is not the same as disguised, and a lock is only as good as its key's management · Getting published soon
  14. Patch Tuesday and Other Unsexy HeroicsThe least glamorous work prevents the most expensive incidents · Getting published soon
  15. When the Agent Goes RogueAn AI that follows instructions can be instructed by the wrong person · Getting published soon
  16. Red Team, Blue Team, Same TeamA red team's job is to find the gaps before someone less friendly does · Getting published soon
  17. Capstone: Every Road Leads Through AppSecOne map, seventeen chapters, a thousand ways to start a career inside it · Getting published soon

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