Hello @Handinata Tanudjaja
Thank you for posting your query on Microsoft Q&A. From above description I could understand that you are trying to know about the Windows Defender updates that comes under which category.
Yes, you are right. Windows Defender updates are considered as part of security updates in Azure. These updates include security intelligence updates, which are crucial for identifying and mitigating potential threats, as well as platform updates that enhance the overall security capabilities of Windows Defender
In Azure, Microsoft Defender for Cloud provides security recommendations to ensure that the latest system updates and patches, including Windows Defender updates, are installed on your machines. This helps maintain the security and health of your systems.
FYR, please refer to the below MS article.
Also refer to the below document which can help you to understand about the defender's security benefits.
https://learn.microsoft.com/en-us/azure/defender-for-cloud/defender-for-servers-overview
Thanks,
Please "Accept the answer" (Yes), and share your feedback if the provided solution answers your query.