Description

A Google Cloud Storage bucket is publicly accessible and tagged as a crown jewel asset. Crown jewel assets are resources an organization has identified as critical to its business, so public exposure significantly increases the impact of data exfiltration or leakage.

Remediation

1. Update the bucket’s IAM policy to remove public access grants for allUsers and allAuthenticatedUsers. See the official documentation for more information about disabling public access.
2. Restrict bucket access to the necessary users or service accounts by reviewing IAM policies and bucket-level permissions. For more information, see the official documentation.