AWS Security Blog

Category: Security

Accelerating AWS Network Firewall troubleshooting with AWS DevOps Agent

When an administrator introduces a rule change in AWS Network Firewall and network connectivity is disrupted, pinpointing the cause requires inspecting multiple points in the traffic path. The firewall gives you stateless and stateful rule engines, domain rules, and routing to the firewall endpoint inside your Amazon Virtual Private Cloud (Amazon VPC). A network drop […]

Designing for the inevitable: System prompt leakage and mitigations in generative AI applications

System prompts form the foundation of generative AI applications. A system prompt is a collection of instructions and operational context provided to a large language model (LLM) that shapes how the model behaves and interacts with users and tools. System prompts often contain proprietary information, including role definitions, behavioral guidelines, tool descriptions and usage instructions, […]

Secure Amazon container workloads using container attribute-based rules in AWS Network Firewall

Today, you can use AWS Network Firewall to protect traffic flowing to and from containerized applications on Amazon Elastic Kubernetes Service (Amazon EKS) and Amazon Elastic Container Service (Amazon ECS) clusters. If you run AI and machine learning (ML) workloads on Amazon EKS—such as model inference, RAG pipelines, or JupyterHub—your containerized workloads require the same […]

How to get started with security response automation on AWS

December 2, 2019: Original publication date of this post. At AWS, we encourage you to use automation. Not just to deploy your workloads and configure services, but to also help you quickly detect and respond to security events within your AWS environments. In addition to increasing the speed of detection and response, automation also helps […]

Real-time malware defense: Leveraging AWS Network Firewall active threat defense

Cyber threats are evolving faster than traditional security defense can respond; workloads with potential security issues are discovered by threat actors within 90 seconds, with exploitation attempts beginning within 3 minutes. Threat actors are quickly evolving their attack methodologies, resulting in new malware variants, exploit techniques, and evasion tactics. They also rotate their infrastructure—IP addresses, […]

AWS re:Invent 2025: Your guide to security sessions across four transformative themes

AWS re:Invent 2025, the premier cloud computing conference hosted by Amazon Web Services (AWS), returns to Las Vegas, Nevada, December 1–5, 2025. At AWS, security is our top priority, and re:Invent 2025 reflects this commitment with our most comprehensive security track to date. With more than 80 security aligned sessions spanning breakouts, workshops, chalk talks, […]

Amazon Elastic Kubernetes Service gets independent affirmation of its zero operator access design

Today, we’re excited to announce the independent affirmation of our Amazon Elastic Kubernetes Service (Amazon EKS) zero operator access posture. Because security is our top priority at Amazon Web Services (AWS), we designed an operational architecture to meet the data privacy posture our regulated and most stringent customers want in a managed Kubernetes service, giving […]

Defending LLM applications against Unicode character smuggling

When interacting with AI applications, even seemingly innocent elements—such as Unicode characters—can have significant implications for security and data integrity. At Amazon Web Services (AWS), we continuously evaluate and address emerging threats across aspects of AI systems. In this blog post, we explore Unicode tag blocks, a specific range of characters spanning from U+E0000 to […]

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 […]