COVID alert bug left some users without exposure notifications for two weeks
Canada's COVID alert app received an update to correct a bug that left multiple users without exposure notifications for two weeks in November.
The update, which was released on November 23rd, included a patch note stating that it fixes a "bug causing gaps in exposure checks for some users." explains that the bug meant that some users would not have received notifications if they came into close contact with someone who had COVID-19. Also, it's unclear how many people missed these exposure notifications due to the glitch.
According to , the issue was first brought to the developer's attention by the commenters in the Google Play Store already on November 12. Together with Play Store users, spoke with Urs Hengartner, an associate professor of computer science at the University of...