AWS Security Blog
Category: Intermediate (200)
TLS 1.2 will be required for all AWS FIPS endpoints beginning March 31, 2021
November 10, 2022: This project was successfully completed in March 2021. TLS 1.2 is now the minimum version supported for all connections to AWS FIPS service endpoints. Note we will be implementing the same policy for non-FIPS endpoints by June 2023. If you also use these endpoints see https://aws.amazon.com/blogs/security/tls-1-2-required-for-aws-endpoints/ for details. To help you meet […]
How to continuously audit and limit security groups with AWS Firewall Manager
At AWS re:Invent 2019 and in a subsequent blog post, Stephen Schmidt, Chief Information Security Officer for Amazon Web Services (AWS), laid out the top 10 security items that AWS customers should pay special attention to if they want to improve their security posture. High on the list is the need to manage your network […]
Use new account assignment APIs for AWS SSO to automate multi-account access
September 28, 2022: In July 2022, we renamed AWS Single Sign-On to AWS IAM Identity Center. In this blog, you will notice that we preserved backward compatibility with API calls and CLI scripts by retaining the API and CLI namespaces that were used under AWS Single Sign-On. September 12, 2022: This blog post has been […]
How to approach threat modeling
April 25, 2023: We’ve updated this blog post to include more security learning resources. August 3, 2022: Conclusion updated to reference the AWS “Threat modeling the right way for builders” workshop training. February 14, 2022: Conclusion updated to reference the companion “How to approach threat modelling” video session. In this post, I’ll provide my tips […]
Masking field values with Amazon Elasticsearch Service
September 9, 2021: Amazon Elasticsearch Service has been renamed to Amazon OpenSearch Service. See details. Amazon Elasticsearch Service (Amazon ES) is a fully managed service that you can use to deploy, secure, and run Elasticsearch cost-effectively at scale. The service provides support for open-source Elasticsearch APIs, managed Kibana, and integration with Logstash and other AWS […]
Control VPC sharing in an AWS multi-account setup with service control policies
January 29, 2021: We made minor updates to the architectural diagram in Figure 1. Amazon Web Services (AWS) customers who establish shared infrastructure services in a multi-account environment through AWS Organizations and AWS Resource Access Manager (RAM) may find that the default permissions assigned to the management account are too broad. This may allow organizational […]
Use AWS Secrets Manager to simplify the management of private certificates
AWS Certificate Manager (ACM) lets you easily provision, manage, and deploy public and private Secure Sockets Layer/Transport Layer Security (SSL/TLS) certificates for use with Amazon Web Services (AWS) services and your internal connected resources. For private certificates, AWS Certificate Manager Private Certificate Authority (ACM PCA) can be used to create private CA hierarchies, including root […]
Signing executables with HSM-backed certificates using multiple Windows instances
December 22, 2025: CloudHSM SDK3 is no longer supported. AWS recommends that you use the latest version, AWS CloudHSM KSP SDK5. We updated this post with SDK5 functionality and features. Customers use code signing certificates to digitally sign software, documents, and other certificates. Signing is a cryptographic tool that lets users verify that the code […]
How to deploy public ACM certificates across multiple AWS accounts and Regions using AWS CloudFormation StackSets
December, 6, 2022: The post had been updated to reflect the updates on Lambda function runtime in the cloudformation template from version 3.6 to 3.9, as 3.6 is deprecated, as well as updates in Lambda deployment package filename in the same template. In this post, I take you through the steps to deploy a public […]
Use a single AWS Managed Microsoft AD for Amazon RDS for SQL Server instances in multiple Regions
Many Amazon Web Services (AWS) customers use Active Directory to centralize user authentication and authorization for a variety of applications and services. For these customers, Active Directory is a critical piece of their IT infrastructure. AWS offers AWS Directory Service for Microsoft Active Directory, also known as AWS Managed Microsoft AD, to provide a highly […]









