

But unlike the Google app, Authy offers multi-device support and backs up an encrypted version of the 2FA codes on the cloud. Like the latter, Authy also adds accounts by taking pictures of the QR codes provided by the sites. 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. Secondly, it's not possible to protect the app by adding a PIN or something similar, which means that anyone with access to the mobile phone can open the application and see all the information. Basically, getting a new mobile phone means having to go through the tedious process of adding all the accounts again. First, it's not possible to sync the app with other devices or create a backup of the added accounts. Google Authenticator presents some downsides, though. 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 application is very user friendly, making it perfect for even the less tech-savvy people out there. It's completely free, it's available for iOS and Android, and users can add an unlimited number of accounts as long as these support 2FA. Google Authenticator is the most popular two-factor authentication app on the market. Both support iOS and Android, and both get the job done, though in slightly different ways. Instead, it's better to go for an authentication app such as Google Authenticator or Authy.

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While many sites already provide this type of code via SMS, it's not advisable to use this method because hackers can sometimes hijack SMS messages. It creates a unique, time-limited key that needs to be inserted by the user to unlock the website. That's where multi-factor authentication comes into play.

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However, if a criminal is able to crack the code, they still can access your information. Long and complex passwords are an excellent first step for protecting your online accounts from hackers.
