How to Use QR Codes For Easier Login Authentication Across Devices - Branch (2024)

We’ve all experienced painful logins with forgotten passwords or logging in with Google and Facebook. How about the frustration of logging into an app on your smart TV with a remote by selecting individual letters from an on-screen keyboard? It doesn’t have to be this way.

The dreaded on-screen keyboard…

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Once a user is logged in on one device, why can’t they easily log in on another device without entering the same email and password again? The technology already exists to create this user experience…QR codes.

In this blog, we will highlight some examples of QR code use cases that can help solve this problem.

Example #1: Use your phone to log in to your desktop apps

Let’s say you get a new laptop. You’re excited to get it all set up but a bit less excited to dig up all your passwords. Even with a password manager, this can be a little disheartening. Now, imagine you open up your favorite website or install your favorite app and, when you go to log in, you are presented with a QR code option.

You decide to scan the QR code and since you’re already logged into your favorite app (e.g. Netflix, Hulu) on your phone, the QR code opens up the app, and asks if you’re trying to log in? You tap “Yes, log me in” and before you know it, you’re on your way! No fumbling with passwords or a password manager, just a seamless experience using existing QR code technology.

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Example #2: Logging into smart TV apps

Okay, using your phone to log in on your desktop is fine, but to be fair, it’s not the most painful place to log in. Let’s say you just bought a new smart TV or the latest popular streaming device (e.g. Roku, Amazon Fire TV, Apple TV). You download your favorite streaming app and then you get the dreaded keyboard screen:

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Keyboards on TV screens are a special kind of torture. Why? Users never, NEVER, prefer to log in this way. There are so many creative ways to avoid this situation. Let’s walk through a potential user experience:

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Option 1: QR code

QR code is the most seamless option. Using the Branch QR Code API, a QR code is generated that will defer deep link users if they don’t have the app or take them directly to the app if it is already installed. This also helps media companies with acquisition and engagement of valuable app users. The best part is that once the user finishes logging in on their mobile device, they will be automatically logged in on their TV without having to re-scan the QR code.

Option 2: Short code

Short code logins have been fairly popular with streaming platforms because they work with both desktop and mobile devices. The user simply goes to the highlighted URL to enter the code and, similar to QR codes, they are automatically logged in on their TV.

Option 3: On-screen keyboard

Finally, the user could also choose the on-screen keyboard which requires using the TV remote to manually type their email and password. This user experience generally makes people want to throw their remote across the room. Why not let them choose an easier way to log in? This should be a last resort.

What if you’re not logged in on your phone?

Let’s flip the tables a bit. You’re logged in and streaming on your laptop while traveling. Remembering that you have a flight in the morning, you decide to download the latest version of your streaming app on your phone to ensure you can watch movies on the plane. You open the mobile app and suddenly you’re less excited about streaming on tomorrow’s flight because you get the typical login screen.

However, you notice something curious — “sign in from another device”. You tap it, and a QR code scanner pops up. It directs you to log in using your computer or even your TV simply by scanning the QR code. Yes please!

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Voila! You’re now logged in on your phone. Password-less handoff of your login info from one device to another.

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QR codes and the authentication circle

In fact, most devices can be used to log in to another device. The options of QR codes or short codes provide paths for users to authenticate on any device, from any device. Once a user is logged in somewhere, they should be able to easily log in anywhere. Using QR codes, you can make the login process an excellent user experience.

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Best-in-class QR codes, powered by Branch

Branch supports our customers with best-in-class QR codes. Cross-device logins powered by Branch QR codes are a powerful solution that bridge the gap between desktop, mobile, and over-the-top (OTT). Leverage the power of QR codes to increase app adoption, get a more holistic picture of your marketing campaigns, and ensure users are directed to the right content.

Our flexible API allows creating branded QR codes in real-time, personalized to each user. Branch enables you to offer cross-device login and deep linking via QR codes by leveraging our mobile linking platform (MLP). Brands that reduce friction with QR codes will have higher conversions and users will spend more time on your platform, across all their devices.

Learn more about Branch QR Codes here!

Branch provides the industry’s leading mobile linking and measurement platforms, offering solutions that unify user experience and attribution across devices and channels.Branch has been selected by over 100,000 apps since 2014 including Adobe, BuzzFeed, Yelp, and many more, improving experiences for more than 3 billion monthly users across the globe.Learn more about Branchorcontact sales today.

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How to Use QR Codes For Easier Login Authentication Across Devices - Branch (2024)

FAQs

How to use QR code for authentication? ›

How to scan a QR code with Microsoft Authenticator
  1. Open the app on your device.
  2. Tap “+” to add an account.
  3. Choose “Scan QR code”.
  4. Position the camera over the QR code, making sure it's visible.
  5. The app will detect and scan the code.
  6. Once scanned, your account will be added.

Can a QR code be used for login? ›

On your compatible Android phone or tablet, open the built-in camera app. Point the camera at the QR code. Tap the banner that appears on your Android phone or tablet. Follow the instructions on the screen to finish signing in.

How do I make my QR code more accessible? ›

Use a large QR Code size: Bigger QR Codes will make it easier for people with vision problems to spot your Codes. Use high-contrast colors: This will also make it easier for people to spot QR codes. Integrate audio or haptic feedback cues: This is another helpful tool for vision-impaired users.

Which bank uses QR code to login? ›

US Bank. The US Bank uses QR codes (Zelle® QR code) to provide quick access to account information and allow users to pay bills and make mobile deposits.

How do I create a QR code for authenticator? ›

To generate a new QR code, click Add sign-in method and select Authenticator app from the list of options. You'll then be told that you need to install the app, which is fine because it's already on the device. Click Next to start the setup process and click Next again to see a new QR code for the app (Figure 2).

How do I set up my device using a QR code? ›

Phones & Tablets
  1. Power on the factory reset or out-of-the-box device. ...
  2. Tap the Android welcome screen six times. ...
  3. Scan the QR code.
  4. If scanned successfully, the Android MDM setup window will appear.

Can QR code be used for security? ›

Account Security: QR codes enhance online security by authenticating user accounts and validating login credentials swiftly. Wi-Fi Connectivity: These codes can contain Wi-Fi network details, such as the network name SSID, password, and encryption type, simplifying the connection process.

How do I get a QR code for one login? ›

Enable 2-factor authentication within your account

From there, go to Sign-in and Security > Signing in to Google > 2-Step Verification. Go through the process to turn on 2-step verification. Once you've turned it on, go to Authenticator app, click Set Up, select iPhone, and a QR code will pop up.

Are QR codes good for accessibility? ›

You may think that QR codes are great for securing your login, or letting users read more online about a product marketed in a news paper ad. But there is a high risk you are creating barriers for people with disabilities, unless you use QR codes correctly.

Is there anything better than QR codes? ›

There are several alternatives to QR Codes, such as NFC, Data matrix, Snaptag, and RFID.

What are the limitations of a QR code? ›

Security Concerns: Vulnerable to phishing if not encrypted. Tech Dependency: Requires a smartphone with a camera and internet access. Connectivity: Needs a stable internet connection to complete transactions. User Familiarity: Some customers may not understand how to use QR codes.

How does QR code login work? ›

QR code authentication can be used as an additional security measure for accounts with two-factor authentication (2FA) set up. When prompted, users can scan a QR code that is presented by a service provider, which will then send a one-time passcode to their mobile device, email account, or authentication application.

Can you link a QR code to a bank account? ›

You can simply create an EPC QR Code with your bank account info and send it to everyone to request bank transfers to make it easier.

Does bank of America use QR codes? ›

The bank's 500,000 CashPro users now have the option to sign into the website using their mobile device by scanning a QR code and their biometrics via the CashPro App, replacing the need to manually enter password credentials.

How do I scan a QR code authenticity? ›

Using a mobile app with a built-in barcode scanner, the user scans the code. The app decodes the barcode data and verifies it with the website or software, which then gives the user access to their account. QR code authentication is a secure and convenient method of verifying someone's identity and granting access.

How to do QR code verification? ›

Generate the QR Code and then open it on another device with a camera, such as a laptop or a smartphone. Ensure that the camera is focused on the QR Code and click “Take Picture” or “Capture.” The camera image injection should be successful, and a URL will be displayed if the code is valid.

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