This question is rather too generic to provide a specific answer to. The generic answer would be, the key is stored somewhere in a area protected by OS, be it iOS, Android or what not and probably by the app.
Google Authenticator - Apps on Google Play In addition to your password, you’ll also need a code generated by the Google Authenticator app on your phone. Learn more about 2-Step Verification: https://g.co/2step Features: * Generate verification codes without a data connection * Google Authenticator works with many providers & accounts * Dark theme available * Automatic setup via QR Where Do I Find My Lost Google Authenticator key? Jul 05, 2018 Google Authenticator Whenever you sign in to Google, you'll enter your password as usual. 2. You'll be asked for something else. Then, a code will be sent to your phone via text, voice call, or our mobile app. Or, if you have a Security Key, you can insert it into your computer’s USB port.
If you lose your phone or otherwise can't get codes via text, voice call, or Google Authenticator, you can use backup codes to sign in. If you don't have your security key, you can also use these codes to sign in. After you use a backup code to sign in, it becomes inactive. You can generate a new set of 10 codes whenever you want.
This question is rather too generic to provide a specific answer to. The generic answer would be, the key is stored somewhere in a area protected by OS, be it iOS, Android or what not and probably by the app. How secure the key is stored determine How to add your website to Google Search Console • Yoast 10. Paste the code in the Google field and click “Save Changes”. 11. Go back to Google Search Console and click ‘Verify’. Congratulations! You’ve connected your website to Google Search Console! Now that you’ve verified and linked your site, you can submit your sitemap. How To Use Google Authenticator To Generate Security Code
In addition to your password, you’ll also need a code generated by the Google Authenticator app on your phone. Learn more about 2-Step Verification: https://g.co/2step Features: * Generate verification codes without a data connection * Google Authenticator works with many providers & accounts * Dark theme available * Automatic setup via QR
recovery - Where to find Google Authenticator backup codes When locked out of your account due to new or lost phone, use the backup code in place of the Authenticator code on the website itself. This was not obvious. I though the backup codes restored the keys like a Bitcoin wallet. Or that there was a separate page to enter the backup code and get the key and QR code to scan. How to Use Google Authenticator - YouTube Oct 03, 2018 Google 2-Step Verification The Google Authenticator app for Android, iPhone, or BlackBerry can generate verification codes. It even works when your device has no phone or data connectivity. Register your computers Where is the key for Google authenticator? - Quora