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least-privilege-access

Least Privilege

Last reviewed Jun 1, 2026 Content v20260601
Track mode
none
Means
Read / quiz
Reading
~1 min
Level
beginner

This lesson

This lesson teaches Least Privilege: security mindset, common threats, and defensive practices for software teams.

Over-privileged IAM is the #1 cloud breach enabler—least privilege and MFA are non-negotiable baselines.

You will apply Least Privilege in contexts like: Web apps, APIs, CI/CD, and organizational compliance programs.

Read scenario-based lessons, map controls to code you write on other tracks, and complete MCQs—practice threat modeling on paper or in docs.

When you can explain the previous lesson's ideas in your own words.

Least privilege grants the minimum permissions needed for the job—users, service accounts, and cloud IAM roles.

Examples

  • App DB user: SELECT/INSERT on app tables only—not DROP DATABASE
  • CI role: deploy to staging—not production admin
  • Developers: no production customer PII by default

Just-in-time

Elevated access for limited time with approval—reduces standing admin rights.

Link AWS

Mirror habits from AWS IAM least-privilege lessons.

Important interview questions and answers

  1. Q: Standing admin risk?
    A: Long-lived powerful credentials increase blast radius.
  2. Q: Service account?
    A: Non-human identity for apps—scope narrowly.

Self-check

  1. Define least privilege.
  2. Give one least-privilege example for a DB user.

Tip: Mirror AWS IAM lesson—no AdministratorAccess for daily dev accounts.

Interview prep

Least privilege?

Minimum permissions required for the task.

Interview tip Lesson completion confidence

Can you explain this lesson in 30 seconds without reading notes?

Not saved yet.

Check yourself

Multiple choice — immediate feedback.

Discussion

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Starter discussion topics

  • Least privilege?
  • JIT access?

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