Evernote implementa la verificación en dos pasos para todos los usuarios

Two-step verification, also known as two-factor authentication, adds an additional layer of security to the login process, requiring you to enter a special code from your phone, in addition to your regular username and password. The goal of this extra step is to combine something you know (your password) with something only you would have access to (your phone).
Setting up two-step verification is straightforward. Just follow the steps in the Security section of Evernote Web. Free users will be required to install an authenticator app on their phones. We recommend Google Authenticator. Premium users can choose to have the code delivered as a text message.

Evernote implementó para todos lo usuarios (las cuentas premium ya lo tenían) la verificación en dos pasos, un sistema que ya existe en Google, Twitter o Basecamp, por ejemplo, y que incrementa la seguridad de nuestras cuentas.

Los usuarios premium recibirán un sms con un código de acceso, mientras que las cuentas normales deberán usar Google Authenticator, que se puede descargar gratis en la AppStore.