AWS Security Blog

Vesselin Tzvetkov

Author: Vesselin Tzvetkov

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Apply the principle of separation of duties to shell access to your EC2 instances

In this blog post, we will show you how you can use AWS Systems Manager Change Manager to control access to Amazon Elastic Compute Cloud (Amazon EC2) instance interactive shell sessions, to enforce separation of duties. Separation of duties is a design principle where more than one person’s approval is required to conclude a critical […]

Integrating AWS CloudFormation security tests with AWS Security Hub and AWS CodeBuild reports

The concept of infrastructure as code, by using pipelines for continuous integration and delivery, is fundamental for the development of cloud infrastructure. Including code quality and vulnerability scans in the pipeline is essential for the security of this infrastructure as code. In one of our previous posts, How to build a CI/CD pipeline for container […]

How to perform automated incident response in a multi-account environment

How quickly you respond to security incidents is key to minimizing their impacts. Automating incident response helps you scale your capabilities, rapidly reduce the scope of compromised resources, and reduce repetitive work by security teams. But when you use automation, you also must manage exceptions to standard response procedures. In this post, I provide a […]

How to set up an outbound VPC proxy with domain whitelisting and content filtering

May 12, 2025: We’ve updated the CloudFormation template to use a launch template instead of a launch configuration. November 16, 2020: We’ve updated the CloudFormation template and the launch stack URL used in this solution. July 24, 2019: We’ve added a link to a GitHub repository that contains the stack content for this solution. Controlling […]