Redshift cluster should not be publicly accessible
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Description
Confirm Redshift clusters are not publicly available.
Rationale
Publicly available Redshift clusters have a public IP address, which gives any machine the opportunity to attempt to connect to your clusters. Malicious activity, such as SQL injections or distributed denial-of-service (DDoS) attacks, can occur if a connection is established.
From the console
Follow the Managing clusters in a VPC docs to learn how to modify public accessibility for your clusters.
