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Delta

Travel · delta.com

Three second factors on offer: approval in an app, text message and email code. The strongest is approval in an app.

Recommended setup

Fly Delta app

Approve sign-ins in the service's own app. Only ever approve a request you just started.

PushApproval in an appFly Delta app
SMSText messageSupported
EmailEmail codeSupported

Not offered: security key, authenticator app, hardware token, phone call.

Switch it on

General steps; menu names vary. Delta's own guide has the exact screens.

  1. Sign in to Delta and open your account's security settings. Look for two-step verification or two-factor authentication. Delta's help pages show the exact screens.
  2. Install Fly Delta app on your phone and sign in. Turn on sign-in approvals when it asks.
  3. Save the backup codes. Keep them in your password manager or print them; they're your way back in if you lose your phone or key.