AWS Payments Cryptography announces support for post-quantum cryptography to secure data in transit

Published
November 21, 2025
https://aws.amazon.com/about-aws/whats-new/2025/11/aws-payments-cryptography-post-quantum-data-transit

AWS Payments Cryptography

AWS Payments Cryptography now supports hybrid post-quantum (PQ) TLS to secure API calls, allowing customers to future-proof transmissions of sensitive data and commands using ML-KEM post-quantum cryptography.

Enterprises can reduce post-quantum risks by ensuring long-lived data-in-transit can be recorded today and decrypted in the future when a sufficiently capable quantum computer becomes available.

What to do

  • Ensure your application depends on a version of AWS SDK or browser that supports PQ-TLS.
  • Review the PQ-TLS enablement documentation for detailed guidance by language and platform.
  • Validate that ML-KEM was used to secure the TLS session for an API call by reviewing tlsDetails for the corresponding CloudTrail event in the console or a configured CloudTrail trail.

These capabilities are generally available in all AWS Regions at no added cost. For more information, see our post-quantum TLS guide and PQC shared responsibility.

Source: AWS release notes




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