This means you can recover without having to speak to your IT admins or Microsoft, and is suitable for most businesses. On the other hand, having Microsoft Authenticator on multiple devices ensure you can use your secondary device to confirm your identity if your primary device is lost or broken. You also don’t want to be in the situation where someone is trying to log on with your stolen credentials while you’re 4 year old is approving authentication requests on your personal tablet. So multiple authenticators are probably not suitable if you’re working with highly sensitive information. While it’s unlikely that an online hacker has access to both my credentials and my authentication device, it’s a definite possibility from a malicious co-worker or an individual planted into an organisation to obtain unauthorised access.
But if the Microsoft Authenticator is set up on multiple devices, I have increased the probability that someone could use a device that I am not in possession of to authenticate a malicious login attempt. Two-factor Authentication systems were created to confirm the identity of a user based on their login credentials and another form of identification, such as a security token, smart card, phone number or, in my case, an authenticator app. In fact, I still can’t find any official announcement by Microsoft of this change. This is something that users have been requesting for a long time, but was unavailable until recently. What’s changed?ĭuring this process I did notice that Microsoft Azure MFA, which is used for Office 365, now allows users to set up the Authenticator app on multiple devices. Thankfully, the Authenticator apps were still active on my old device, so there were no issues. The most time-consuming task was moving my Microsoft and Google Authenticator apps because these required me to log into various online systems and re-enrol my authentication device. This was very quick and easy for me, given that I don’t have too many apps. I recently purchased a new phone and decided to set it up from scratch, rather than restore a backup from my old phone.
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