AWS services are often accessed across the internet, which is inherently insecure. As a result, AWS supports IPSec and SSL/TLS when protecting data in transit with all AWS Services.

When using HTTPS (HTTPS over SSL/TLS) with your web servers, it can cause additional processing and computing resources to terminate the session; as this scales to hundreds or tens of thousands of connections, it can cause a significant impact on your fleet. To help alleviate this issue, it's a good idea to implement an elastic load balancer that can handle the termination of HTTPS and scale accordingly, therefore reducing the impact upon the web servers when it comes to processing the request.