Topline An app that athletes, spectators and media attending the Beijing Olympic Games must download and use for daily Covid-19 monitoring has security flaws that could expose users’ personal information, cybersecurity researchers at the University of Toronto warned Tuesday. Key Facts The app My2022 has a “simple but devastating” flaw, which at times failed to encrypt user data, leaving personal information exposed, the report by Citizen Lab said. Attendees of the Winter Games use the app to upload information such as passport details, travel plans and medical histories before they arrive in China, and have to continue using it during...