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. It was detected that the SNS topic {AwsSnsTopic} are not encrypted at rest using AWS KMS. Encrypting data at rest reduces the risk of data stored on disk being accessed by a user not authenticated to AWS. It also adds another set of access controls to limit the ability of unauthorized users to access the data.