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Virginia Tech

Universities · vt.edu

Four second factors on offer: approval in an app, hardware token, text message and phone call. The strongest is approval in an app.

Recommended setup

Duo

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

PushApproval in an appDuo
TokenHardware tokenDuo D100 Token, Yubico OTP
SMSText messageSupported
CallPhone callSupported

Not offered: security key, authenticator app, email code.

Switch it on

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

  1. Sign in to Virginia Tech and open your account's security settings. Look for two-step verification or two-factor authentication. Virginia Tech's own guide shows the exact screens.
  2. Install Duo 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.
Virginia Tech's setup guide ↗