How to Manage Microsoft Authenticator Devices for One Account
Question details
The user needs to securely transition their Microsoft Authenticator setup to a new device or manage approved multi-factor authentication methods without increasing security risks.

- Product
- Microsoft Authenticator
- Device & OS
- not provided
- Scenario
- Replacing an old mobile device with a new one while maintaining secure access to a Microsoft account.
- Observed behavior
- The user wants to configure a new device for authentication but needs to avoid the security risks associated with keeping multiple devices active on a single account.
Ensure you have access to your Microsoft account security dashboard via a web browser and keep your old device nearby if it is still required to approve the login.
Replace an Old Phone with a New Authenticator Device
To maintain optimal security, remove the old device from your account before or immediately after adding your new device.
Microsoft strongly advises against configuring a single user account on multiple Authenticator devices, as this widens your security vulnerability. When upgrading to a new phone, the best practice is a clean swap.
Go to the Microsoft account security dashboard online and log in. Navigate to the 'Advanced security options' or 'Security info' section.
Locate your old phone in the list of registered sign-in methods. Click 'Remove' or 'Delete' next to the Microsoft Authenticator entry for that specific device.
Click on 'Add a new way to sign in or verify' and select 'Use an app'. Open the Microsoft Authenticator app on your new phone and scan the provided QR code to complete the setup.

Configure Additional Verification Methods
Set up alternative backup methods in case you lose access to your primary Authenticator device.
Streamline Your Workflow with WPS Office
While you secure your Microsoft account, consider switching to WPS Office for a hassle-free document editing experience. It's a lightweight, powerful, and free alternative to Microsoft Office that doesn't require complex account setups just to get your work done.
- 1. Download the Installer: Visit the official WPS Office website and click the free download button for your operating system.
- 2. Install WPS Office: Run the downloaded setup file and follow the quick on-screen instructions to install the suite.
- 3. Open Your Documents: Launch WPS Office and instantly open your existing Microsoft Word, Excel, or PowerPoint files without losing any formatting.

Frequently Asked Questions
Can I have Microsoft Authenticator on two phones for the same account?
While it is technically possible in some environments, Microsoft strongly advises against keeping one account active on multiple Authenticator devices due to increased security risks. It is best to use a single, primary device.
What should I do if the phone with my Authenticator app is lost?
You should immediately log into your Microsoft account using a backup verification method (like SMS or an alternate email), go to your security settings, and delete the lost device from your approved Authenticator list.
Why does my organization require IT approval to change my Authenticator device?
Many organizations enforce strict security policies to prevent unauthorized access to company data. IT administrators may need to manually revoke your old device's access token before a new device can be registered.




