Recommended Mitigation
It is recommended to configure Ec2 instances 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>