Description

Simple Notification Service (SNS) is a managed service that provides message delivery from publishers to subscribers (also known as producers and consumers). Publishers communicate asynchronously with subscribers by sending messages to a topic, which is a logical access point and communication channel. Clients can subscribe to the SNS topic and receive published messages using a supported endpoint type, such as Amazon Kinesis Data Firehose, Amazon SQS, AWS Lambda, HTTP, email, mobile push notifications, and sms. Orca has detected that the SNS topic {AwsSnsTopic}'s policy allows for public access. Public access to a topic can lead to abuse of the SNS service by a malicious party, by sending an excessive amount of notifications and causing additional billing. Use the SNS topic's policy in order to restrict who can access that topic.

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  Recommended Mitigation

  It is recommended to set the SNS topic's policy to provide access to known parties only. For more information: https://docs.aws.amazon.com/IAM/latest/UserGuide/access_controlling.html