If you are using Amazon Lex V2, refer to the Amazon Lex V2 guide instead.
If you are using Amazon Lex V1, we recommend upgrading your bots to Amazon Lex V2. We are no longer adding new features to V1 and strongly recommend using V2 for all new bots.
Encryption in Transit
Amazon Lex uses the HTTPS protocol to communicate with your client application. It uses HTTPS and AWS signatures to communicate with other services, such as Amazon Polly and AWS Lambda on your application's behalf.
