Not op, but my usual process is: * when setting up 2FA, a website shows a QR code * I screenshot the QR code, and print it out on an A4 sheet, with an annotat

Not op, but my usual process is: * when setting up 2FA, a website shows a QR code * I screenshot the QR code, and print it out on an A4 sheet, with an annotation of what service it is for * I scan the QR code from the A4 sheet on two different phones. * Back on the website, I continue 2FA setup process only after the A4 sheet is printed, and both phones show the same codes * The A4 sheet goes in a folder for safe keeping * One phone goes in my desk drawer for daily use * The other phone goes in my "go" bag that I take with me on short trips etc. Both phones are used exclusively for Google Authenticator: * they have no extra apps * they have a screen lock * they are always in flight mode Started doing this when I got burned by having to extract GA's sqlite file from mostly-dead Nexus One over adb.