Recommended Mitigation
It is recommended to configure Network Load Balancers to allow access to TCP port 9042 (Cassandra Client)sandra Client) from specific IP addresses only. More details can be found in <a href="https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-access-to-an-instance.html" target="_blank" rel="noopener noreferrer">https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/authorizing-access-to-an-instance.html</a>