
High risk accounts (such as Bitcoin) will require a 24-hour delay with email approval, or you can turn on this protection by disabling "multi-device" in the Authy app settings. You will receive a push notification if someone else is trying to access your account via SMS.

#Authy desktop without password code
Two-factor authentication dramatically increases your security by requiring entry of a code visible only from your mobile or desktop device, sent by SMS or an app that syncs with the website you are accessing. More and more, email hacks or phishing attacks leave users vulnerable to unauthorized password resets. It is not possible to use Authy without a phone number. It is needed to both verify account ownership, and to register the app.

Please note, you must use a phone number to create an Authy account. Some of our well-known partners include CloudFlare, Twitch, Pinterest, etc. If you set up an account with one of those companies, and use two-factor authentication, that company may use Authy to send SMS to your phone, and if so, they have created an Authy account for you to use with our free mobile apps if you wish. Authy is a free mobile / desktop app for two-factor authentication, as well as security partner and SMS delivery service of many websites that want to make two-factor authentication work better for their users.
