Hello,
It is possible that someone is using a Microsoft resource to try an authenticate to the account.
#1 Check if you have any resources (scripts, etc) that are python that may be trying to make these connections.
#2 If you don't you can try reporting this ip address to Microsoft.
https://msrc.microsoft.com/report/abuse
If this is helpful please accept answer.
Hi @Dev1 Datalaked ,
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