Windows 10: Microsoft Authenticator unknown sign in requests

When I start my Windows PC I get a logon on popup and a Authenticator request on my phone.I have more jobs and thus more MS work accounts and also a private MS account, but this request is for a work account that I should not use on this PC, so I want to kill the process/app that is causing the logon request.I have no idea what application is doing it and the approve prompt on the phone MS Authenticator app does not give any details either.How can I find out what app is asking for sign in?

:)

 

microsoft authenticator unknown sign in requests

Every now and then I get on my Windows PC an unknown sign in request (see screenshot below).

I have no idea what application is doing it and why.

The approve prompt on the phone (MS Authenticator app) does not give any details either.

How can I find out who or what is asking for sign in?

 

Microsoft Authenticator will not automatically detect the sign in request starting today......

It worked all the time before up until today when I try to sign into my outlook.com and there is no two step authenticator sign in request received on my iphone. But if I go into the Microsoft Authenticator app itself and click check for notifications,
I then receive the sign in request. But what I want is the old behavior where the notification will show up automatically. (I did not turn off Microsoft Authenticator notification, the notification in the iphone setting app are all enabled.)

 

Sign in request in authenticator app

Whenever a user with 2fa enabled signs into their account they will receive a request to access the account via email, text or app. You can then deny or approve the request if using an app or if sent a code via text/email to ignore it. Thus when someone with the account details try’s logging in from an unknown device it’ll sent the authentication request to the app automatically.
It sounds like the log in request was denied via an authentication app.
Is there any chance your pc has malware/keylogger installed? If each password is unique then the password has been compromised somehow or an app with automatic login is trying to sign in.
I would change the password for the account via a different device or via the browser’s in private mode.