How To Spot Data Exfiltration Using AWS Cost Anomaly Detection

Also, any unexpected costs in your AWS accounts coming from AWS accounts outside your organization

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In the last post I wrote about a cool feature of AWS Billing and Cost Management — Cost Anomaly Detector.

One of the cool things is the ability to drill down into what is causing the cost anomaly. Click to the link on the right to view the root cause.

Here I can see a filter on costs for KMS.

If I want to take a look at the costs by account I can choose an account from the left hand side. Notice that I have one account that says “redacted”