Apple Hearing Study unintentionally collected historical data from users

Dear Apple Hearing Study Participant,Thank you for your participation in the Apple Hearing Study. When you enrolled in the study, you provided consent to collect certain headphone sound level, environmental sound level, heart rate, and workout data types during the enrollment process. This data is collected to help researchers, listed in the consent form, understand the link between long-term sound exposure and its impact on hearing health. We recently learned that due to a bug, after study enrollment, the Apple Hearing Study unintentionally collected up to 30 days of historical data for these authorized data types. The study only collected data after your consent was obtained. However, the study consent form does not state that historical data will be collected.The bug has now been fixed with a study app update and historical data received to date have been deleted. We remain committed to your privacy and will continue to monitor for and delete any additional historical data if received until you update your Apple Research app. Please update your Apple Research app to the latest version here, to receive the fix.At no time did Apple have access to information collected from the Apple Research app that could directly identify you. Please refer to the study informed consent form for additional details on the data that is being collected, how your data is stored, and who your data might be shared with for the purposes of the study.Please verify that you are using the latest version of the Apple Research app in order to receive the fix. If you need assistance with this, or have additional questions about this issue or the Apple Hearing Study, please contact the Studies Support Center at 833-237-3881.Sincerely,Richard Neitzel, PhD, CIH, FAIHA Associate Professor, University of Michigan Principal Investigator, Apple Hearing Study