![]() I have re-entered them on at least 6 occasions. Were you to lose your phone you would simply do what I do when setting up a new phone. Since I only have 5 sites this only takes at most 10 minutes to do. Whenever I get a new phone I always set it up anew rather than restoring from a backup so I reinstall Authy (or in your case Google Authenticator) from the app store, get out my list of seed numbers, and manually add each site again using the seed codes that I have recorded. I also print out this file every time I add to it and store a hard-copy in my fire safe in case my PC were ever to be stolen. Letting the camera scan the QR code is essentially just automatically entering that alphanumeric number for you.Īs soon as the web site displays the number it wants me to enter to seed the 2FA I also record that seed number in an encrypted file on my PC which is of the form. If you click that it will display a long-ish alphanumeric number that you need to enter into the app as the seed for the algorithm that Authenticator will use to generate the time-aligned numbers for the particular site you are setting it up for. For every site I have ever set up there has always been a link that says something like "set up manually" as an alternative to scanning the QR code with your camera (in some cases it might be a link identifying itself by saying something like "I don't have a camera" or similar). What I do is that when I am setting up a new 2FA site in Google Authenticator (or in my case Authy) I don't use the QR scanning method to set up the new site. I don't use a backup because, although I am mostly OK storing stuff on the cloud, I view the 2FA as my last line of defence re security on my most critical accounts so I don't want to take any risks at all. It warns me about once every few months that I don't have backups enabled and I hit "Ignore" every time rather than enabling them. ![]() ![]() I actually do have the capability because I use an iOS app called Authy which is a clone of Google Authenticator and does offer online backup. ![]() Even if it was available I would never use a cloud backup for this. ![]()
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