AWS::SNS::TopicPolicy:
Properties: PolicyDocument: | { "Id" => "MyTopicPolicy", "Version" => "2012-10-17", "Statement" => [ { "Sid" => "My-statement-id", "Effect" => "Allow", "Principal" => { "AWS" => FnGetAtt("myuser", "Arn") }, "Action" => "sns:Publish", "Resource" => "*" } ] } Topics: | [ "List of SNS topic ARNs" ]