Apple Hearing Study Bug Results in Accidental Historical Data Collection From Participants

Apple device owners who participated in the Apple Hearing Study that Apple is conducting with the University of Michigan School of Public Health are today receiving emails letting them know about a bug that resulted in excess data collection.
Those who enrolled in the study consented to allow Apple and researchers to collect headphone sound level, environmental sound level, heart rate, and workout data types. The data is used to help researchers better understand the link between long-term sound