Twilio’s Authy is a free two-factor authentication app (or 2FA app) that allows anyone to leverage improved security using their cell phone.
Typically, when a user logs into an application or service on their computer, they’re asked for a username and password. However, those credentials can easily be stolen and used by bad actors to access an account. Authy provides an additional layer of security by generating a single-use token on their cell phone.
Users enter this unique, timed six-digit code on their computer to securely access their account. Since this code is unique to the user’s phone, a hacker would need access to that user’s credentials and their cell phone to successfully access the account. Read more about Authy vs Google Authenticator now.