How to protect sensitive data in a Temporal Application

Temporal offers a powerful platform that provides engineers with deep insight into their application's runtime behavior, enabling them to track every step of workflow execution and recover seamlessly from crashes. This observability feature is facilitated through the Temporal Web UI and is crucial for achieving what Temporal calls Durable Execution. However, the platform prioritizes data security, employing measures such as TLS for data in motion and AES-256-GCM encryption for data at rest. Developers can further secure data using Payload Codecs to encrypt or replace sensitive information before transmission, ensuring that Temporal Services only handle encrypted data. For developers concerned about balancing data confidentiality with observability, Temporal provides a solution through a Codec Server, which enables client-side decoding without compromising data security. This layered approach allows users to tailor their security strategy to meet specific application needs while maintaining the ability to monitor and understand workflow executions effectively.

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