Choose an authentication option and approve to access your vault.
If you (or your administrator) enabled the Duo WebSDK experience when configuring Duo in LastPass, you'll see the Duo Prompt. If you click the "This computer is trusted." option then you won't be prompted for two-factor authentication again from the same browser on that device.
The LastPass Duo multifactor window appears after username and password is entered, and at the same time a push authentication request appears on your mobile device if it is activated for Duo Mobile. See our LastPass documentation for step-by-step instructions. In order to use Duo Push with LastPass, you must have first signed up for a Duo account and configured your LastPass vault to use Duo authentication.