Google Authenticator is a security app from Google that do the job of Two-factor authentication, it is a software-based by Google that implements two-step verification services using the Time-based One-time Password Algorithm (TOTP; specified in RFC 6238) and HMAC-based One-time Password algorithm (HOTP; specified in RFC 4226), for authenticating users of software applications.
Two-factor authentication is a must to secure any account, but in many cases, it isn’t safe enough to have a text message sent to your phone. The alternative is an authenticator app, and one of the most popular of those is from Google.
this app is as safe as Two-factor authentication, but it still an app. when you change your smartphone and get a new one you will face a problem with moving Google Authenticator and its data to the new device.
fortunately, you can do this in a few simple steps, let’s see how.
- From your laptop, Open Google’s 2-Step Verification page in a browser and log into your Google account when it asks you.
- In the “Authenticator app” section of the page, click “Change Phone.”
- Choose the kind of phone you are migrating to and click “Next.”
- You should now see the “Set up Authenticator” screen, complete with barcode. Open Google Authenticator on the new phone and follow the prompts to scan the barcode. Tap “Setup,” and then “Scan a Barcode.”
- After the scan, you’ll want to enter the one-time code to verify it’s working.
Now, You’ve now moved Google’s authentication code to the new phone.
But with this way uplines, just work with google apps you secured with the app, probably still have a slew of other apps and services connected to Google Authenticator.
In this case, You’ll need to migrate each of these, one at a time:
- Pick a site or service that’s listed in your old copy of Google Authenticator (on the old phone) and log into its website or open the app.
- Find that site’s 2FA setting. It’s probably in the account, password, or security section of the website.
- Once you find the right controls, disable 2FA for this site.
- Finally, re-enable 2FA, this time scanning the QR code with Google Authenticator on the new phone.
Repeat that process for each site or service listed in your old copy of Google Authenticator.