Communication between a client application and an Azure AI Video Indexer account is encrypted using Transport Layer Security (TLS). TLS is a standard cryptographic protocol that ensures privacy and data integrity between clients and services over the Internet. For more information about TLS, see Transport Layer Security. Video Indexer enforces a minimum of TLS v1.2. Customers can't control the cipher suits, we will pick the first match between the client and server going from strong to weaker.