SNS topic access policies should not allow public access

FSBP

Description

Flags SNS topic access policies that allow public access.

Update the SNS topic access policy to remove public access permissions.

Open the Amazon SNS console.
Select the SNS topic with the public access policy.
Go to the 'Access policy' section in the topic's settings.
Review the policy statements and identify any that have Principal: '*'.
Either remove these statements or add conditions (such as SourceAccount or SourceArn) to restrict access.
Save the updated access policy.

FSBP