tls version

Author: Larry Franks

articles/machine-learning/how-to-secure-web-service.md

@@ -23,6 +23,8 @@ You use [HTTPS](https://en.wikipedia.org/wiki/HTTPS) to restrict access to web s
 
 > [!TIP]
 > The Azure Machine Learning SDK uses the term "SSL" for properties that are related to secure communications. This doesn't mean that your web service doesn't use *TLS*. SSL is just a more commonly recognized term.
+>
+> Specifically, web services deployed through Azure Machine Learning only support TLS version 1.2.
 
 TLS and SSL both rely on *digital certificates*, which help with encryption and identity verification. For more information on how digital certificates work, see the Wikipedia topic [Public key infrastructure](https://en.wikipedia.org/wiki/Public_key_infrastructure).