Remove insecure ciphers for your AWS ELB Predefined or Custom Security Policy, to reduce the risk of the SSL connection between the client and the load balancer being exploited.
In AWS Console -
In Terraform -
References:
https://docs.aws.amazon.com/elasticloadbalancing/latest/application/load-balancer-listeners.html
https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/load_balancer_policy#policy_attribute