Duolingo English Test (DET) announces patent-pending “Ear Scan” technology intended to identify hidden earbuds used for cheating during exams. According to DET’s presentation at DETcon and accompanying materials, the feature uses the DET’s mobile app to perform the scanning process as part of the test experience. The company frames the tool as a way to improve exam integrity by detecting audio devices that could be concealed and used to receive help during testing. The reports describe the technology as being revealed publicly through the event and include a demonstration-style “watch” item showing how the scan is used within the mobile app. While the coverage does not provide detailed technical specifications or performance results, it consistently states that the ear scan is designed to detect hidden earbuds and that it is currently patent pending. Both outlets present the announcement as part of DETcon’s rollout of new anti-cheating measures and focus on the mobile-app-based approach to scanning.