Hello @DecydeAI , its not possible to store or display the vulnerability scan history for AWS ECR container images scanned with Microsoft Defender for Cloud. However, you can use Continuous export of alerts and recommendations to Log Analytics or Azure Event Hubs - Microsoft Defender for Cloud | Microsoft Learn use one of the builtin workbooks or create you own workbook to handle the exported data.
If the aforementioned solution does not fit your neeeds, I invite you to submit your feedback at Microsoft Defender for Cloud · Community (azure.com)
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