The site or application then recognizes the device (and account) used to scan the code, and the user is logged in without having to recall any passwords. She can then use the corresponding mobile application installed on her phone to scan the QR code. Corresponding mobile application: If a user needs to log into an application or website using a device other than her mobile phone (for example, a tablet or a laptop), the system generates a unique QR code.(In order for the login to work, the user must be logged in already on her WeChat mobile app, but almost all Chinese users are permanently logged into WeChat because it offers so many other useful features.) The user can use the scanner in the WeChat mobile application on her phone to scan the QR code on the desktop screen (left), and then confirm the login (right) to the desktop application. In order to log in to WeChat’s desktop application (left), the login window provides a QR code (right) for the user to scan with her WeChat mobile app. They are also used to facilitate authentication across devices. QR codes are two-dimensional barcodes and are often used in China to bridge the physical and digital worlds of information. Scanning QR codes is a popular login method in China. Popular Mobile-Login Methods in China QR-Code Login The desktop login user interface of JD (a popular Chinese ecommerce platform) uses QR codes as the default method for unauthenticated users to scan in order to log in. So, the extent of the password-related issues was much smaller in China than in North America. And 2 of the 3 Chinese participants who struggled to remember their password on a desktop site were able to easily log into their accounts by using an alternative mobile-login method. A majority of our Chinese participants used mobile login during our testing sessions. In contrast to our American participants, few Chinese participants had issues with their passwords.Ī major contributing factor to this difference is the prevalence of mobile-login methods in China, which allow users to authenticate on a desktop site using their smartphone, without having to remember a password. “I have to remember so many different passwords for everything!”, she complained. One American participant tried 7 different passwords for her Google account with no luck, and then finally gave up. These problems ranged from being unable to gain access to an account having to reset a password and needing to switch to another device where the participants were already logged in. Many of the United States participants complained about remembering passwords or actually encountered account-login problems due to forgotten passwords during the study. In an independently funded, qualitative user research study, we investigated the role that digital technology plays in people’s everyday lives through several field studies as well as usability testing both in North America (US and Canada) and China. (Login has huge impact on employee productivity in enterprise computing, with the best quarter of login designs saving an estimated $2.5 M per year in a 10,000-employee company compared with the worst quarter of login designs.) And when they are unable to retrieve a password, they must waste time resetting it. The burden of remembering passwords causes users to often choose easy, insecure passwords or engage in dubious password-tracking practices, like writing down the password or using the same password for all accounts. When passwords are required in the login process, users have to recall them or deal with the consequences. Often, these passwords must be entered on small touchscreen keyboards, and typing them causes much grief and wasted effort. We work, shop, and communicate primarily online and we have to deal with more accounts, and more passwords. Twenty years later, the problem has only gotten worse. People have been struggling to remember and keep track of their online passwords since the dawn of personal Internet use in the mid 1990s.
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