Category: AWS Identity and Access Management (IAM)

November 3, 2022: We updated this post to fix some syntax errors in the policy statements and to add additional use cases. August 30, 2021: This post is currently being updated. We will post another note when it’s complete. AWS Identity and Access Management (IAM) roles are a significant component of the way that customers […]

AWS Identity and Access Management (IAM) Access Analyzer provides many tools to help you set, verify, and refine permissions. One part of IAM Access Analyzer—policy validation—helps you author secure and functional policies that grant the intended permissions. Now, I’m excited to announce that AWS has updated the IAM console experience for role trust policies to […]

AWS Identity and Access Management (IAM) is changing an aspect of how role trust policy evaluation behaves when a role assumes itself. Previously, roles implicitly trusted themselves from a role trust policy perspective if they had identity-based permissions to assume themselves. After receiving and considering feedback from customers on this topic, AWS is changing role […]

September 9, 2022: This blog post has been updated to reflect the new name of AWS Single Sign-On (SSO) – AWS IAM Identity Center. Read more about the name change here. March 23, 2022: In the section “Logging session activity,” we fixed an error in the CloudTrail example and added a note of explanation. In […]

In this blog post, I introduce IAM Policy Validator for AWS CloudFormation (cfn-policy-validator), an open source tool that extracts AWS Identity and Access Management (IAM) policies from an AWS CloudFormation template, and allows you to run existing IAM Access Analyzer policy validation APIs against the template. I also show you how to run the tool […]

To help you more easily troubleshoot your permissions in Amazon Web Services (AWS), we’re introducing additional context in the access denied error messages. We’ll start to introduce this change in September 2021, and gradually make it available in all AWS services over the next few months. If you’re currently relying on the exact text of […]

October 13, 2021: We’ve added a section on redacting and transforming personally identifiable information with Amazon S3 Object Lambda. In this post, we describe the AWS services that you can use to both detect and protect your data stored in Amazon Simple Storage Service (Amazon S3). When you analyze security in depth for your Amazon […]

You can improve your organization’s security posture by enforcing access to Amazon Web Services (AWS) resources based on IP address and geolocation. For example, users in your organization might bring their own devices, which might require additional security authorization checks and posture assessment in order to comply with corporate security requirements. Enforcing access to AWS […]

August 31, 2021: AWS KMS is replacing the term customer master key (CMK) with AWS KMS key and KMS key. The concept has not changed. To prevent breaking changes, AWS KMS is keeping some variations of this term. More info. Multi-tenant applications must be architected so that the resources of each tenant are isolated and […]

June 5, 2021: We’ve updated Figure 1: User request flow. Authorizing functionality of an application based on group membership is a best practice. If you’re building APIs with Amazon API Gateway and you need fine-grained access control for your users, you can use Amazon Cognito. Amazon Cognito allows you to use groups to create a […]