Nonetheless, it does provide the option to protect the app with a PIN and biometric authentication, giving its users an extra layer of security. Moreover, since Authy tokens are saved in the SIM card, it's safer to always use the Google Authenticator token instead. This means that regardless of how you’re trying to access your account, Authy will be a click away, giving you the 2FA code required to log in.Ĭonsidering that Authy requires a phone number and sends a text message with an activation code, it doesn't offer the most secure setup process. Furthermore, the app is available not only for iOS and Android, but for Windows and macOS as well. But unlike the Google app, Authy offers multi-device support and backs up an encrypted version of the 2FA codes on the cloud. Like its competitor, Authy also adds accounts by taking pictures of the QR codes provided by the sites. Keep in mind, however, that if your phone has been stolen, the thief could still use Authy to generate tokens for any accounts you’ve already added to it. While there are a few websites (such as Twitch) that work specifically with Authy tokens, the app actually works with any website that supports Google Authenticator. Twilio today announced that it has acquired Authy, a Y Combinator-backed startup that offers two-factor authentication services to end users, developers and enterprises. There are already many websites that support Google Authenticator, and the user just needs to enable this 2FA method on the desired service, take a snapshot of the QR code, and they’re done. The app is very user-friendly, making it perfect for even the less tech-savvy people out there. This makes it quite difficult for hackers to steal the codes, as they have to be in possession of your device. Moreover, these 2FA codes aren’t stored in the cloud, meaning that only someone with access to the phone can use them. Both types are generated in the app rather than sent via SMS. It uses event-based one-time passwords (HOTP) that aren’t time-limited and time-based one-time passwords (TOTP) for authentication. It's completely free, available for iOS and Android, and users can add an unlimited number of accounts, so long as they support 2FA. Google Authenticator is the most popular two-factor authentication app on the market.
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