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SebastiaanVanEssen-9843 asked SebastiaanVanEssen-9843 edited

Why is my personal number used by authenticator to call other people with their codes?

My coworker asked me why my number is showing on her phone as the number calling her for her code every day. It seems Microsoft is spoofing my number to call out. I am getting dozens of return calls every day and my coworker is confused every time she uses MFA and I come up as contact to call her with her code.

azure-ad-multi-factor-authentication
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michev answered SebastiaanVanEssen-9843 edited

There's a setting within the Azure AD blade that allows you to specify the CallerID, so check for that:
https://portal.azure.com/#blade/Microsoft_AAD_IAM/MultifactorAuthenticationMenuBlade/PhoneCallSettings/fromProviders/

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looks like I don't have access to any of that. still strange Microsoft uses my number as outgoing number to call with, giving other people their codes on their own phones. can't they just use their own number for that?

I'll contact my senior system admin to see if they can have a look, thank you for your reply.

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