Labs AWS IAM Roles, Policies & Least Privilege Across S3 and EC2
IAM Roles, Policies & Least Privilege Across S3 and EC2
Design and implement fine-grained IAM users, groups, roles, and policies that enforce the principle of least privilege across S3 and EC2. Build a permission model you would trust in production.
Last updated 02/2026
90
Beginner
Prerequisites
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AWS account with administrative access
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Basic understanding of what S3 and EC2 are
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Familiarity with the AWS Management Console
Objectives
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How IAM users, groups, roles, and policies relate to each other
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How to write and interpret IAM policy JSON documents
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How to apply the principle of least privilege to real AWS resources
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How to attach roles to EC2 instances without using long-lived credentials
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How to validate permissions using IAM Policy Simulator
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How to identify and correct overly permissive configurations
