AWS Security Blog

Category: Security

Use scalable controls to help prevent access from unexpected networks

As your organization grows, the amount of data you own and the number of data sources to store and process your data across multiple Amazon Web Services (AWS) accounts increases. Enforcing consistent access controls that restrict access to known networks might become a key part in protecting your organization’s sensitive data. Previously, AWS customers could […]

Implementing Defense-in-Depth Security for AWS CodeBuild Pipelines

Recent security research has highlighted the importance of CI/CD pipeline configurations, as documented in AWS Security Bulletin AWS-2025-016. This post pulls together existing guidance and recommendations into one guide. Continuous integration and continuous deployment (CI/CD) practices help development teams deliver software efficiently and reliably. AWS CodeBuild provides managed build services that integrate with source code […]

How to automate incident response for Amazon EKS on Amazon EC2

Triaging and quickly responding to security events is important to minimize impact within an AWS environment. Acting in a standardized manner is equally important when it comes to capturing forensic evidence and quarantining resources. By implementing automated solutions, you can respond to security events quickly and in a repeatable manner. Before implementing automated security solutions, […]

How to build a Security Guardians program to distribute security ownership

Welcome to the second post in our series on Security Guardians, a mechanism to distribute security ownership at Amazon Web Services (AWS) that trains, develops, and empowers builder teams to make security decisions about the software that they create. In the previous post, you learned the importance of building a culture of security ownership to […]

Best Practices to help secure your container image build pipeline by using AWS Signer

AWS Signer is a fully managed code-signing service to help ensure the trust and integrity of your code. It helps you verify that the code comes from a trusted source and that an unauthorized party has not accessed it. AWS Signer manages code signing certificates and public and private keys, which can reduce the overhead […]

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2023 Canadian Centre for Cyber Security Assessment Summary report available with 20 additional services

At Amazon Web Services (AWS), we are committed to providing continued assurance to our customers through assessments, certifications, and attestations that support the adoption of current and new AWS services and features. We are pleased to announce the availability of the 2023 Canadian Centre for Cyber Security (CCCS) assessment summary report for AWS. With this assessment, a […]

Writing IAM Policies: Grant Access to User-Specific Folders in an Amazon S3 Bucket

Mar 25, 2024: We have fixed the JSON code examples which caused errors by replacing the curly quotes with straight quotes. November 14, 2023: We’ve updated this post to use IAM Identity Center and follow updated IAM best practices. In this post, we discuss the concept of folders in Amazon Simple Storage Service (Amazon S3) […]

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Refine permissions for externally accessible roles using IAM Access Analyzer and IAM action last accessed

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 account. IAM roles have two types of policies […]

AWS Digital Sovereignty Pledge: Announcing a new, independent sovereign cloud in Europe

August 4, 2025: We updated this post to include EU resident citizenship requirements for AWS European Sovereign Cloud employees operating the cloud. French | German | Italian | Spanish From day one, Amazon Web Services (AWS) has always believed it is essential that customers have control over their data, and choices for how they secure […]

IAM Policies and Bucket Policies and ACLs! Oh, My! (Controlling Access to S3 Resources)

September 11, 2023: This post has been updated. Updated on July 6, 2023: This post has been updated to reflect the current guidance around the usage of S3 ACL and to include S3 Access Points and the Block Public Access for accounts and S3 buckets. Updated on April 27, 2023: Amazon S3 now automatically enables […]