As a security team lead, your goal is to manage security for your organization at scale and ensure that your team follows AWS Identity and Access Management (IAM) security best practices, such as the principle of least privilege. As your developers build on AWS, you need visibility across your …

Customers use Amazon Web Services (AWS) to securely build, deploy, and scale their applications. As your organization grows, you want to streamline permissions management towards least privilege for your identities and resources. At AWS, we see two customer personas working towards least privilege permissions: security teams and developers. Security …

In this post, we continue with our recommendations for achieving least privilege at scale with AWS Identity and Access Management (IAM). In Part 1 of this two-part series, we described the first five of nine strategies for implementing least privilege in IAM at scale. We also looked at a …

Least privilege is an important security topic for Amazon Web Services (AWS) customers. In previous blog posts, we’ve provided tactical advice on how to write least privilege policies, which we would encourage you to review. You might feel comfortable writing a few least privilege policies for yourself, but …

When you build on Amazon Web Services (AWS) across accounts, you might use an AWS Identity and Access Management (IAM) role to allow an authenticated identity from outside your account—such as an IAM entity or a user from an external identity provider—to access the resources in your …

You can use AWS Identity and Access Management (IAM) Access Analyzer policy validation to validate IAM policies against IAM policy grammar and best practices. The findings generated by Access Analyzer policy validation include errors, security warnings, general warnings, and suggestions for your policy. These findings provide actionable recommendations that …

In this blog post, we show you how to create an Amazon QuickSight dashboard to visualize the policy validation findings from AWS Identity and Access Management (IAM) Access Analyzer. You can use this dashboard to better understand your policies and how to achieve least privilege by periodically validating your …

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 …

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 …

In April 2021, AWS Identity and Access Management (IAM) Access Analyzer added policy generation to help you create fine-grained policies based on AWS CloudTrail activity stored within your account. Now, we’re extending policy generation to enable you to generate policies based on access activity stored in a designated …

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 S3 storage, consider doing the following: Audit and restrict Amazon S3 access with …

In this blog post, we show you how to automatically resolve AWS Identity and Access Management (IAM) Access Analyzer findings generated in response to unintended cross-account access for IAM roles. The solution automates the resolution by responding to the Amazon EventBridge event generated by IAM Access Analyzer for each …

In this blog post, I show you how to use AWS IAM Access Analyzer programmatically to automate the detection of public access to your resources in an AWS account. I also show you how to work with the Access Analyzer API, create an analyzer on your account and call …

In 2019, AWS Identity and Access Management (IAM) Access Analyzer was launched to help you remove unintended public and cross account access by analyzing your existing permissions. In March 2021, IAM Access Analyzer added policy validation to help you set secure and functional permissions during policy authoring. Now, IAM …

AWS Identity and Access Management (IAM) Access Analyzer helps you monitor and reduce access by using automated reasoning to generate comprehensive findings for resource access. Now, you can preview and validate public and cross-account access before deploying permission changes. For example, you can validate whether your S3 bucket would …