Snap the resulting QR code with Duo Mobile and you're ready to go. To enable the app for 2FA on a secure site, just follow that site's instructions as if you were going to use Google Authenticator. ![]() You start by installing the app on your iOS, Android, BlackBerry, or Windows Phone. Like Twilio Authy, Duo Mobile can handle two-factor authentication for any of the many sites that support Google Authenticator. However, Google isn't the only company with a dog in this race. The Internet Engineering Task Force (Opens in a new window) has defined a public standard for app-based authentication, and its best-known implementation is Google Authenticator (GA). It doesn't run up against any messaging limits, and app-based authentication works even on mobile devices that don't have cellular connectivity. However, when there's an actual smartphone available, app-based authentication is even better. ![]() SMS-based authentication works with any kind of cellphone, not just with smartphones. Since 1982, PCMag has tested and rated thousands of products to help you make better buying decisions. ( Read our editorial mission (Opens in a new window) & see how we test everything we review (Opens in a new window).) The handy Turn It On website explains how to turn on simple SMS-based authentication for well over 100 websites. The vast majority of modern two-factor solutions rely instead on something almost everyone has-a smartphone. But a fingerprint doesn't make a great do-all second factor, because fingerprint readers are neither ubiquitous nor perfectly accurate. Your fingerprint is an example of something you are. Two-factor authentication just means using at least two of those three.Ī password is an example of something you know that's one factor. Security mavens talk about three items that can be used for authentication: something you know, something you are, and something you have. The free Duo Mobile offers exactly that.įirst, a two-factor refresher. But for serious security, you want two-factor authentication (2FA). That shoulder-surfer will have a tough time remembering a password like !atAVethabU?rur2. Using a password manager to manage strong, unique passwords for all your websites can help. Anybody who hacks, guesses, or shoulder-surfs your password gets full access to your account. Passwords are pretty terrible as a form of authentication. Very few sites support Duo Push for consumers.Setting up Duo Push for LastPass proved surprisingly complicated in our testing.Can't sync configuration between devices.How to Set Up Two-Factor Authentication.How to Record the Screen on Your Windows PC or Mac.How to Convert YouTube Videos to MP3 Files.How to Save Money on Your Cell Phone Bill. ![]() ![]()
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