Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Encryption at rest

Amazon IoT Greengrass stores your data:

Data at rest in the Amazon Web Services Cloud

Amazon IoT Greengrass encrypts customer data stored in the Amazon Web Services Cloud. This data is protected using Amazon KMS keys that are managed by Amazon IoT Greengrass.

Data at rest on the Greengrass core

Amazon IoT Greengrass relies on Unix file permissions and full-disk encryption (if enabled) to protect data at rest on the core. It is your responsibility to secure the file system and device.

However, Amazon IoT Greengrass does encrypt local copies of your secrets retrieved from Amazon Secrets Manager. For more information, see the secret manager component.