Duo Mobile App | Secure Mobile Authentication (2024)

Using an authenticator app will help keep your company and personal data safe. Secure all of your devices with one simple and easy authentication app: Duo Mobile, a two-factor authentication (2FA) and multi-factor authentication (MFA) solution.

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  • Download Duo Mobile

Easy, One-Tap 2FA

It's fast and easy to log in securely withDuo Push, the more secure method oftwo-factor authenticationsupported by Duo Mobile. With Duo's single-tap, user-friendly interface, users can quickly verify their identity by approving push notifications before accessing applications. It's just as quick to deny an unfamiliar login attempt, so users can easily stop fraudulent attempts to access company data.

Duo Mobile can also generatetime-based one-time (TOTP) passcodesthat users can type into their login prompt to complete thetwo-factor authenticationprocess.

Before Duo, we had hundreds, if not thousands of attempts to compromise user accounts almost daily. Since implementing Duo, we don’t see it as much. Not only is Duo a second line of defense but it also scares the attackersoff. Read the Customer Story

— Aaron Thalman, Security Engineer, IDEA Public Schools

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What Is a 2FA Mobile App?

A 2FA mobile app is a smartphone application that helps users log on to other apps with more security. Two-factor authentication is a type of tool used to verify an online user’s identity.There are a variety of different types of second factors, or ways to verify said user’s identity. For instance, some 2FA apps require users to verify their identities with their fingerprints, or biometrics.

Other 2FA apps utilize push notifications, which require identity verification with a non-biometric tap of the screen. Some 2FA apps, like Duo Mobile, combine location-based identity verification with push verification, sending users a reading of their location and the option to tap the screen to confirm.

A 2FA App in Action

When a Duo Mobile user from Austin, Texas logs on to Salesforce on their work computer, they receive a notification from their 2FA app. When they open the notification, they see that their location-based authentication reading is coming from Austin, Texas.The user is in the location their 2FA app identified, so they can confidently tap their screen and verify their identity when they log into Salesforce.

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2FA App Prevents Malicious Access

If that same user receives a Duo Mobile notification toverify a Salesforce login when they have made no login attempt themselves, they know that a bad actor is trying to access their data. When they open the 2FA app to view the notification, theythen see that the login attemptcame fromKraków, Poland. They now have the location of the bad actor and can immediately report the malicious behavior to their company’s administration.

The Benefits of Using a 2FA Mobile App

The Duo Mobile App helps users take an active role in protecting their accounts.

Security Checkup

By providing a security score of users’ devices, Security Checkup empowers users to maintain the security hygiene of their mobile devices via Duo Mobile notifications. This feature is available on iOS and Android through Duo Mobile.

  • Is Your Device Healthy? Check Out Duo Security Checkup

Duo Restore

Provide your users with the ability to back up and restore their Duo Mobile app with Duo Restore. This feature allows Android and iOS Duo Mobile users to back up their Duo-protected accounts and recover them when they get a new device — no help desk ticket needed.

  • Learn About Duo's Self-Service Portal

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How Do I Use a Two-Factor Authentication App?

From an end user standpoint, using a 2FA mobile application is a simple but important part of securely accessing data.After a 2FA app has been properly installed onto a user’s device, be it a personal device or company-managed device, they then can enroll their individual logins in the service.

Some 2FA solutions like Duo integrate seamlessly right out of the box.After setup is complete, the user will be asked to confirm their identity at every login by use of their 2FA mobile app. That means that when the end user logs onto Microsoft Outlook, their device that the 2FA app is installed on will now prompt them to verify their identity before granting them access to their emails.

  • Try Duo's 2FA Mobile App

MFA Authentication App vs. 2FA App — What’s the Difference?

Multi-factor authentication apps and two-factor authentication apps are identical except for one key difference: how many different types of verifications are used. While 2FA refers to a second or additional identity verification method added to a password or PIN, MFA refers to verification that uses more than two additional identity verification methods. This means that a 2FA app is a type of MFA app. Let’s break it down a little further:

Multi-Factor Authentication or MFA

MFA is an access security solution. There are multiple ways to verify with MFA (push notifications, biometrics, location, etc.). MFA is often used in authenticator appsto support other factors of verification, or by itself. In short, MFA is simply 2 or more verification methods added to a password or pin.

Example:A user logs on to their Gmail account with their username and password. Their MFA app asks them to both verify their locationandprovide their fingerprint before granting them access to their account.

Two-Factor Authentication or 2FA

2FA is also an access security solution. Like MFA, there are multiple ways to verify with 2FA (push notifications, biometrics, location, etc.)2FA is often used in authenticator apps as well. All this said, 2FA is actually a type of MFA, but instead of using multiple factors of verification, 2FA only refers to MFA that uses single verification method added to a password or pin.

Example:A user logs on to their Gmail account with their username and password. Their 2FA app asks them to verify their location before granting them access to their account.

Authentication Controls for Every User

Duo Mobile supports multiple authentication controls — frompush notifications, tobiometrics, topasscodes— while maintaining a consistent, intuitive user login experience. Allow your users to choose the method that best meets their needs and easily update their preferences at any time.

  • Duo for Touch ID
  • Learn About Duo's Authentication Controls
  • Compare Pros and Cons of Authentication Methods

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Download Duo Mobile

Duo Mobile works with Apple iOS and Google Android. Download Duo Mobile for iPhone or Duo Mobile for Android - they both supportDuo Push, passcodes and third-party TOTP accounts.

Duo Mobile works on all the devices your users love — like Apple and Android phones and tablets, as well as many smart watches. Duo Mobile also supports biometric authentication, an additional layer of security to verify your users’ identities.

Duo Mobile App | Secure Mobile Authentication (2024)

FAQs

What is Duo Mobile authentication? ›

The Duo Mobile application makes it easy to authenticate — just tap “Approve” on the login request sent to your Android device. You can also quickly generate login passcodes, even without an internet connection or cell service.

How do I get my Duo Mobile authentication code? ›

With Duo Mobile Passcode: When opening the Duo mobile app, it will display a six-digit code which you can enter after selecting "Enter a Passcode" from the authentication screen. If you have a hardware token, select "Enter a Passcode," press the button on the token, then enter the code the token displays.

Is Duo Mobile a good authenticator app? ›

Buying Options. Duo Mobile is free and easy to use. And, unlike most authentication apps, it has a simple, uncluttered interface. If you're new to 2FA, this app is a good way to get started.

Is authentication with Duo required? ›

Users who are already enrolled in Duo are prompted to complete two-factor authentication. This is the default policy for new applications. Allow access without 2FA - Users who are already enrolled in Duo must use two-factor authentication.

Can I bypass duo authentication? ›

A user must have a valid Duo authentication device enrolled (like a phone or hardware token) in order to use a bypass code to authenticate. Bypass codes are not intended as a user's only 2FA method. Bypass codes expire after being used the allowed number of times, or after an administrator-defined amount of time.

Is Duo Security Mobile App Safe? ›

Your content is sent securely using end-to-end encryption

Messages sent on Duo are stored encrypted on Google servers. If you turn on live captions, we use audio data, which is not linked to identifiable information and not stored. Learn more about end-to-end encryption on Duo.

What is the Duo app used for? ›

It was available for Android, IOS and web browsers. It let users make and receive one-to-one and group audio and video calls with other Duo users in high definition, using end-to-end encryption by default.

Can Duo Mobile see what you do on your phone? ›

Duo Mobile cannot see your user data like your contacts, it cannot read your text messages, it cannot access your photos (but it can use your camera to scan a QR code if you explicitly allow that permission), it cannot access your files, it cannot erase your device, it cannot see information about other applications on ...

Why do people use Duo Mobile? ›

Duo is a two-factor authentication solution that helps organizations boost security by verifying user identity, establishing device trust, and providing a secure connection to company networks and applications.

What is the difference between Duo and Duo Mobile? ›

For all Duo-protected integrations and the Duo Admin Panel, Duo uses HOTP, or HMAC-based one-time password (OTP) to generate passcodes for authentication. Duo Mobile allows users to generate event-based passcodes that are valid until they have been used.

What is the most secure authentication method for Duo? ›

Duo considers platform authenticators and roaming authenticators to be the most secure authentication methods, so if you have set up either of these methods and the application allows their use you'll automatically be prompted to use your platform authenticator (like Touch ID) or roaming authenticator (like security ...

Can you disable duo authentication? ›

Can I disable an authentication method? Yes, Duo administrators can disable any authentication method for users or administrators. For example, since NIST recommends SMS 2FA deprecation, some may not want to allow end-users to authenticate via SMS.

Where do I get the activation code for Duo Mobile? ›

Click the Activate Duo Mobile link in the "Device Info" section. This link is only available when you set the phone type to "Mobile" and selected something other than "Unknown" as the platform. Then on the next page click the Generate Duo Mobile Activation Code button.

Why would someone get Duo Mobile? ›

It's fast and easy to log in securely with Duo Push, the more secure method of two-factor authentication supported by Duo Mobile. With Duo's single-tap, user-friendly interface, users can quickly verify their identity by approving push notifications before accessing applications.

What is the Duo app used for on Android? ›

You can use Google Duo to make video or voice calls. All calls are made through your mobile data plan or a WiFi connection. Calls don't use your mobile minutes. If you use your mobile data, charges may apply.

What is the difference between Google Authenticator and Duo? ›

When assessing the two solutions, reviewers found Google Authenticator easier to use and set up. However, Cisco Duo is easier to administer. Reviewers agreed that both vendors make it equally easy to do business overall. Reviewers felt that Google Authenticator meets the needs of their business better than Cisco Duo.

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