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All news with #certificate pinning tag

Wed, October 8, 2025

Configure and Verify ACM Certificates with Trust Stores

🔐 This post explains how to configure customer trust stores to accept public certificates issued through AWS Certificate Manager (ACM) and clarifies the role of Amazon Trust Services. It warns that ACM issues certificates via dynamically selected intermediates, so trusting only intermediates or pinning end-entity certificates can cause outages. The recommended action is to install five Amazon root CAs in your trust stores and to validate configuration across Windows, Amazon Linux, and Java environments.

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