Internetwork traffic privacy - Amazon DataSync
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).

Internetwork traffic privacy

We recommend configuring your source and destination locations with the highest level of security that each one supports. When connecting to a location, Amazon DataSync works with the most secure version of the data access protocol that the storage system uses. Additionally, consider limiting subnet traffic to known protocols and services.

DataSync secures the connection between locations—including between Amazon Web Services accounts, Amazon Web Services Regions, and Availability Zones—by using Transport Layer Security (TLS) 1.3.