Line, arguably Taiwan’s most popular messaging app, is the main battleground of disinformation in Taiwan. Line quickly took over the Taiwanese market after it was launched in Japan in 2011 by a subsidiary of the Korean tech giant Naver Corporation. In 2019, approximately 90 percent of Taiwanese used the app, sending more than 9 billion messages per day. Like WhatsApp, Line’s design makes it easy to rapidly disseminate harmful and false content: It offers a high degree of anonymity, as user profiles often have only a name and picture, and in combining features such as its own integrated news platform and private and encrypted group chats, it encourages users to share articles within the app. Users have to take an extra step to share to other apps, and this friction point keeps users on Line.