This rule detects instances when anonymous access is enabled for Azure storage account blobs. Allowing anonymous access means that unauthenticated users can read the blob data, which poses a significant risk as it can lead to inadvertent data exposure. The rule specifically monitors both account-level settings and container-level settings that permit public access. It leverages Azure Monitor Activity logs to track operations made on storage accounts and helps in identifying unauthorized access through various tests that validate the enabling or disabling of public access settings.