* When evaluating if user can perform something on a bucket, it is union of IAM policies and S3 bucket policies * Example 1: IAM role attached to EC2 authorizes RW + nothing on bucket => authorize RW ...

An IAM Role with additional sts actions support on trusted policy be created successfully. Error: creating IAM Role (wtf): MalformedPolicyDocument: AssumeRole policy may only specify STS AssumeRole ...

At this year's AWS re:Inforce, session IAM433, AWS Sr. Solutions Architect Matt Luttrell and AWS Sr. Software Engineer for IAM Access Analyzer Dan Peebles delved into some of AWS IAM’s most arcane ...

AWS STS is a web service that enables users to request temporary, limited-privilege credentials for users to access AWS resources without needing to create an AWS identity. These STS tokens can be ...

In this second part, you will learn how to centralize IAM for multiple AWS accounts, create and use EC2 instance profiles, and implement just-in-time access with Vault. Sunday, May 18, 2025 Security ...

One of the most talked-about sessions at AWS re:Inforce, and my favorite, was IAM433, on AWS IAM’s internal evaluation mechanisms The post Diving Deeply into IAM Policy Evaluation – Highlights from ...