AWS Security Blog

Today, we’re announcing that AWS Certificate Manager (ACM) will discontinue support for email-validated public certificates by September 30, 2027. If you use email validation for your ACM public certificates, you need to migrate to DNS validation before that date. This change aligns with the Certification Authority/Browser (CA/B) Forum’s industry-wide deprecation of email-based domain validation and […]

When you build a new application or capability on Amazon Web Services (AWS), you want to focus on what you’re building. Getting a service running almost always begins with AWS Identity and Access Management (IAM). Many AWS services that act on your behalf need an IAM role, an identity the service assumes to access your […]

Organizations operating in Germany and across Europe increasingly need to demonstrate cloud security compliance under the Cloud Computing Compliance Criteria Catalogue (C5:2020), published by Germany’s Federal Office for Information Security (BSI). Last year, we introduced Landing Zone Accelerator on AWS support for digital sovereignty and today we’re announcing the availability of a new independent assessment […]

Amazon Web Services (AWS) is pleased to announce that the Summer 2026 System and Organization Controls (SOC) 1 report is now available. The reports cover 185 services over the 12-month period from July 1, 2025–June 30, 2026, giving customers a full year of assurance. These reports demonstrate our continuous commitment to adhering to the heightened […]

Amazon Web Services (AWS) is pleased to announce its successful completion of the 2025-26 NHS Data Security and Protection Toolkit (NHS DSPT) assessment audit and achieving a status of Standards Exceeded. The NHS DSPT is an assessment that allows organizations to measure their performance against the National Data Guardian’s 10 data security standards. All organizations […]

We’re excited to announce that our Europe (London) AWS Region has renewed its accreditation for United Kingdom (UK) Police-Assured Secure Facilities (PASF) for Official-Sensitive data. Since 2017, the Amazon Web Services (AWS) Europe (London) Region has been accredited under the PASF program. This demonstrates our continuous commitment to adhere to the heightened expectations of customers […]

We’re excited to announce that Amazon Web Services (AWS) has completed theCyberVadis assessment of its security posture with the highest score (Mature) in all assessed areas. This demonstrates our continued commitment to meet the heightened expectations for cloud service providers. Customers can now use the 2026 AWS CyberVadis report and scorecard to reduce their supplier […]

Ten years ago, we launched AWS Directory Service for Microsoft Active Directory, a fully managed Microsoft Active Directory in the AWS Cloud. In that original announcement, Jeff Barr described a straightforward promise: “You will spend less time administering and more time working on your applications and your business.” A decade later, AWS Managed Microsoft AD […]

Misconfigured Amazon Simple Storage Service (Amazon S3) buckets can expose your data to unauthorized access. Without proactive review, S3 bucket policies or Access Control Lists (ACLs) configured with broad access may go unnoticed in your environment. In this post, you learn how to identify and fix over-permissioned S3 buckets across your AWS environment, along with […]

Customers tell us that managing TLS certificates at scale is one of their biggest operational concerns. The Certification Authority Browser Forum (CA/Browser Forum) has mandated a phased reduction in maximum certificate validity for public certificates. By March 2027, the maximum validity drops to 100 days. By March 2029, it lasts for 47 days. For an […]