Hello @Bimala Shrestha
Thank you for posting your query on Microsoft Q&A.
Could you please confirm Microsoft defender is enabled in your tenant or not since I am able to see in the picture that it is blurred out.
Microsoft doc:-
Now related to enable the feature please check the below doc and let me if it works for you
https://learn.microsoft.com/en-us/azure/defender-for-cloud/how-to-manage-attack-path
Hope this helps. Do let us know if you any further queries.
Best regards,
Sakshi Devkante