AWS Security Blog

Amazon ElastiCache for Redis now supports encryption for secure internode communications to help keep personally identifiable information (PII) safe. Both encryption in transit and at rest are supported. The new encryption in-transit feature enables you to encrypt all communications between clients and Redis servers as well as between Redis servers (primary and read replica nodes). […]

Today, AWS introduced AWS Directory Service for Microsoft Active Directory (Standard Edition), also known as AWS Microsoft AD (Standard Edition), which is managed Microsoft Active Directory (AD) that is performance optimized for small and midsize businesses. AWS Microsoft AD (Standard Edition) offers you a highly available and cost-effective primary directory in the AWS Cloud that […]

In a previous AWS Security Blog post, Jeff Levine showed how you can monitor changes to your Amazon EC2 security groups. The methods he describes in that post are examples of detective controls, which can help you determine when changes are made to security controls on your AWS resources. In this post, I take that […]

September 16, 2025: AWS Private CA Connector for Active Directory now supports server-side LDAPS certificate enrollment for AWS Managed Microsoft AD domain controllers. To learn how to enable server-side LDAPS for your AWS Managed Microsoft AD directory using AWS Private CA Connector for Active Directory, please refer to our updated documentation. March 18, 2024: We […]

Earlier this year, AWS Identity and Access Management (IAM) introduced service-linked roles, which provide you an easy and secure way to delegate permissions to AWS services. Each service-linked role delegates permissions to an AWS service, which is called its linked service. Service-linked roles help with monitoring and auditing requirements by providing a transparent way to […]

March 12, 2024: We updated step 7 of this post. August 8, 2022: We made minor updates to some of the steps and images for resetting a lost MFA device. To help secure your AWS resources, AWS recommends that you follow the AWS Identity and Access Management (IAM) best practice of enabling multi-factor authentication (MFA) […]

In March, we made it easier to view and understand the permissions in your AWS Identity and Access Management (IAM) policies by using IAM policy summaries. Today, we updated policy summaries to help you identify and correct errors in your IAM policies. When you set permissions using IAM policies, for each action you specify, you […]

January 18, 2023: We fixed a capitalization issue in a url that was preventing ADFS from authenticating properly in most browers. December 12, 2019: A customer reported that the architecture diagrams had a typo in it, and so we replaced the two diagrams to address the problem. You can now enable your users to access […]

The Defense Information Systems Agency (DISA) has granted the AWS GovCloud (US) Region an Impact Level 5 (IL5) Department of Defense (DoD) Cloud Computing Security Requirements Guide (CC SRG) Provisional Authorization (PA) for six core services. This means that AWS’s DoD customers and partners can now deploy workloads for Controlled Unclassified Information (CUI) exceeding IL4 […]

Today, we updated the AWS Identity and Access Management (IAM) console to make it easier for you to create, manage, and understand IAM roles. We made improvements that include an updated role-creation workflow that better guides you through the process of creating trust relationships (which define who can assume a role) and attaching permissions to roles. Additionally, […]