What happens to Duo when you change your number?

Changing Phone Number
If you or a Duo Admin haven't deleted your previous device from Duo since your number changed and you restored Duo Mobile
Duo Mobile
The Duo Mobile application makes it easy to authenticate — just tap “Approve” on the login request sent to your Android device. You can also quickly generate login passcodes, even without an internet connection or cell service.
on a new device, you will still be able to receive a push as Duo Push is not tied to the phone number.
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Is Duo tied to phone number?

Your phone number won't be linked to your Google Account in Duo anymore.
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Can you change your number on Duo?

To update your phone number/device in Duo, you will need to first add another device and then remove the original device.
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How do I transfer my Duo app to my new phone?

Select the new phone's operating system. Install Duo Mobile on the new phone and scan the QR code to activate. The new phone is added and listed with your other enrolled devices. You can click Add another device to start the enrollment process again and add another authenticator.
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What happens to Duo Mobile If I lost my phone?

I lost my phone.

If you aren't able to log in to Duo at all then your Duo administrator can disable the missing phone for authentication and help you log in using another method. While it's important that you contact your administrator if you lose your phone, remember that your password will still protect your account.
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How to Change Phone Number in Google Duo App | 2021



Does Duo work if phone is disconnected?

Duo Mobile App (Smartphones and Tablets)

You can request single-use passcodes directly from the Duo Mobile app, even when your mobile device is in airplane mode or lacks cell service.
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How do I get two factor authentication code if I lost my phone?

What Happens if I Use Two-factor Authentication and Lose My Phone...
  1. Backup codes: the easy way to recover your account.
  2. Transfer your old phone number to a new phone.
  3. Have your verification code sent to your backup phone.
  4. Set up 2FA on two different devices.
  5. Contact customer service.
  6. Use NordPass with biometric authentication.
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How do I restore my Duo phone to my new iPhone?

Restore Your Device
  1. Restore your device from an iCloud backup.
  2. Download the DUO Mobile app onto your new device.
  3. Open the DUO Mobile and follow the onscreen instructions.
  4. Any backed-up DUO-protected accounts are restored. A success message displays when complete.
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Can you have two accounts on Duo Mobile?

Duo multi-factor authentication is able to support multiple, independent accounts through their smartphone apps. You can manage multiple Duo accounts from your Duo Mobile app on your iOS or Android device.
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How do I unlink my number from Duo?

Deleting your Duo account is the only way to completely disconnect it from your phone number or Google Account.
  1. On your Android device, open Duo.
  2. Tap More Settings. Account.
  3. Tap Delete Duo account. Delete.
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Why does Duo need my phone number?

After you verify your number on Duo

Duo can periodically send your contacts and location to Google. If you call someone not saved in your contacts, Duo will display your phone number so that they can see who's calling.
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How can I open my Duo without phone number?

How To Create Google Duo Account Without Phone Number On Android Tablets
  1. Download and install the Google Duo app.
  2. When prompted, allow access to the contact list, camera, and microphone function.
  3. Go to Settings > Account > select Reachable with Email Address.
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Why does my old phone number show up on Duo?

When you sign up for Duo (as well as most apps that use phone numbers), there is a SMS challenge to prove that you own your phone number. You will continue to be reachable on Duo at that number until you either a) sign up for Duo with a different number or b) someone else signs up for Duo with your old number.
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Can Duo video calls be traced?

To keep your conversations private, Duo uses end-to-end encryption for 1:1 and group video calling and cloud encryption for meetings joined or created in Duo. Only people in a call or meeting know what's said or shown.
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Can Google Duo calls be traced by police?

Your Duo calls always stay private with end-to-end encryption. Only people in a call can know what's said or shown. Google can't see, hear, or save your call's audio and video.
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Does Duo Mobile Backup to iCloud?

Accounts in Duo Mobile can be recovered on iOS and Android devices in some circumstances. Duo-protected and third-party user accounts on iOS and Android can be securely backed up and recovered via Duo Restore. In addition to Duo Restore, iOS Duo-protected accounts are backed up when your device syncs with iCloud.
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Where to find Duo activation code?

To activate Duo on your device, open the Duo app on your smartphone, tap the “+” button, and use your smartphone to scan the QR code on the computer screen. On iPhone and Android, activate Duo Mobile by scanning the barcode code with the app's built-in scanner.
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How do I resync my Duo?

KB FAQ: A Duo Security Knowledge Base Article Jun 22, 2022•Knowledge
  1. Log in to the Duo Admin Panel.
  2. Under the 2FA Devices tab, navigate to the Hardware Tokens subsection.
  3. Select the hardware token that needs to be resynced by clicking its serial number.
  4. Click Resync Token in the upper right corner of the screen.
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What to do if you lose your phone and can t access your accounts?

For an Android phone
  1. Go to Android.com/find and sign into your Google account.
  2. Select the lost phone.
  3. Click “Secure Device” to lock the phone and sign out of the Google account.
  4. Add an optional message and phone number for anyone who finds it.
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What do I do if I don t have access to the trusted number on my Apple ID?

If you use security questions with your Apple ID, or if you don't have access to a trusted device or phone number, go to iforgot.apple.com. Then you can unlock your account with your existing password or reset your password.
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How do I get my lost 8 digit backup code?

Create & find a set of backup codes
  1. Go to your Google Account.
  2. On the left, click Security.
  3. Under "Signing in to Google," click 2-Step Verification. You may need to sign in.
  4. Under "Backup codes," click Continue .
  5. From here you can: Get backup codes: To add backup codes, click Get backup codes.
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Can you still receive text messages if your phone is disconnected?

While your phone is disconnected, you will not receive text messages sent to it.
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What are the disadvantages of Google Duo?

It's a free download for both Android and iPhone users.
...
Cons
  • Requires signup.
  • No way to reject a call with a message.
  • No way to accept a call without video.
  • Some Wi-Fi connectivity issues in testing.
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How do I merge Duo accounts?

Merging 3 users into 1
  1. Identify the primary username format to be used going forward. (typically sAMAccountName)
  2. Delete secondary usernames in Duo that will soon become aliases to the primary username.
  3. Add secondary usernames in Duo as aliases to primary usernames.
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