As a collection of managed services, AWS IoT is protected by the AWS global network security
procedures that are described in the Amazon Web Services:
Overview of Security Processes
You use AWS published API calls to access AWS IoT through the network. Clients must support Transport Layer Security (TLS) 1.2 or later. Clients must also support cipher suites with perfect forward secrecy (PFS) such as Ephemeral Diffie-Hellman (DHE) or Elliptic Curve Ephemeral Diffie-Hellman (ECDHE). Most modern systems, such as Java 7 and later, support these modes. For more information, see Transport security in AWS IoT Core.
Requests must be signed by using an access key ID and a secret access key that is associated with an IAM principal. Or you can use the AWS Security Token Service (AWS STS) to generate temporary security credentials to sign requests.
