Using the latest version of TLS can help keep data in-transit protected from man-in-the-middle and similar attacks.
In AWS Console -
In Terraform -
References:
https://docs.aws.amazon.com/elasticloadbalancing/latest/userguide/data-protection.html
https://docs.aws.amazon.com/elasticloadbalancing/latest/application/create-https-listener.html#describe-ssl-policies
https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/load_balancer_policy