AWS Security Blog

Category: AWS CloudTrail

Quantum-resistant signing on AWS, Part 2: Enforce your ML-DSA algorithm policy with SCPs and IAM

You want to set a cryptographic algorithm policy and stop non-compliant choices from being made in your Amazon Web Services (AWS) environment. This post shows you how. As you adopt post-quantum cryptography, one of the first decisions you face is which algorithms and parameter sets fit your business needs, balancing security against signature size, key […]

Quantum-resistant signing on AWS, Part 1: Build a software supply chain with ML-DSA

Software supply chain attacks have grown in both frequency and sophistication. Recent high-profile compromises of build systems and open source dependencies demonstrate that attackers increasingly target the trust mechanisms that verify software integrity. Those trust mechanisms rely on digital signature algorithms, and today many use traditional algorithms such as Rivest-Shamir-Adleman (RSA) and the Elliptic Curve […]

Incident response guide for AWS CloudTrail investigations – Part 2

In Part 1 of this guide, we examined two common incident scenarios: cross-account Amazon Simple Storage Service (Amazon S3) data deletion with ransomware implications, and cryptocurrency mining deployed through AWS CloudFormation using exposed AWS Management Console credentials. We also introduced key incident response terminology and investigative frameworks for analyzing AWS CloudTrail events. In this second […]

Incident response guide for AWS CloudTrail investigations – Part 1

AWS CloudTrail logs contain the evidence you need when investigating suspicious activity in your AWS environment, but knowing which fields matter and how to interpret them can mean the difference between surface-level analysis and uncovering the full scope of an incident. This guide walks you through real-world scenarios, showing you how to analyze CloudTrail events […]

Detecting multi-stage attacks on AWS: A guide to cross-service signal correlation

A single alert from one security service tells you something happened. Read that signal alongside activity from other services and your own business context, and you will know whether what happened is part of a multi-stage attack. Consider a short sequence. An identity calls GetCallerIdentity from a source address it hasn’t previously used. Within minutes, […]

Solution architecture

Create security observability using generative AI with Security Lake and Amazon Q in QuickSight

Generative artificial intelligence (AI) is now a household topic and popular across various public applications. Users enter prompts to get answers to questions, write code, create images, improve their writing, and synthesize information. As people become familiar with generative AI, businesses are looking for ways to apply these concepts to their enterprise use cases in […]

Investigate security events by using AWS CloudTrail Lake advanced queries

This blog post shows you how to use AWS CloudTrail Lake capabilities to investigate CloudTrail activity across AWS Organizations in response to a security incident scenario. We will walk you through two security-related scenarios while we investigate CloudTrail activity. The method described in this post will help you with the investigation process, allowing you to […]

Using CloudTrail to identify unexpected behaviors in individual workloads

In this post, we describe a practical approach that you can use to detect anomalous behaviors within Amazon Web Services (AWS) cloud workloads by using behavioral analysis techniques that can be used to augment existing threat detection solutions. Anomaly detection is an advanced threat detection technique that should be considered when a mature security baseline […]

Getting Started: Follow Security Best Practices as You Configure Your AWS Resources

After you create your first AWS account, you might be tempted to start immediately addressing the issue that brought you to AWS. For example, you might set up your first website, spin up a virtual server, or create your first storage solution. However, AWS recommends that first, you follow some security best practices to help […]