Delta Drive, Delta Trust & My Drive · Security, sign-in and privacy
What if I lose the phone with my Delta Drive authenticator app?
Short answer: Sign in with one of the recovery codes you saved when you set up two-step sign-in — each works once. They can't be shown again, so when you're low, turn two-step off and on to get a fresh set.
Use one of the recovery codes you were shown when you turned two-step sign-in on. Each one works once, in place of the authenticator code.
We can't show those codes again — we keep only a fingerprint of them, so it isn't something we're able to do rather than something we decline to do. The Security screen tells you how many recovery codes you have left; when you're down to the last couple, turn two-step sign-in off and on again to get a fresh set.
See turning it off.