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.

apple hearing study bug
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 exposure and the impact on hearing health.

According to the email participants are receiving, a bug in the study caused up to 30 days worth of historical data to be collected. Data collection did not fall outside of what was consented to when participants signed up, but the sign up form did not mention the collection of historical data.

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.

Richard Neitzel, the principal investigator in the study, says that Apple did not have access to information collected from the Apple Research app that could be used for identification purposes.

The bug has been addressed with an update to the Apple Research app and historical data received to data has been deleted. To ensure no further historical data collection, participants are being asked to update their Apple Research apps.

Popular Stories

iPhone SE 4 Thumb 1

iPhone SE 4 With Apple's Own 5G Modem 'Confirmed' to Launch in March

Tuesday November 19, 2024 12:12 pm PST by
Barclays analyst Tom O'Malley and his colleagues recently traveled to Asia to meet with various electronics manufacturers and suppliers. In a research note this week, outlining key takeaways from the trip, the analysts said they have "confirmed" that a fourth-generation iPhone SE with an Apple-designed 5G modem is slated to launch towards the end of the first quarter next year. In line with previo...
airtag purple

AirTag 2 Rumored to Launch Next Year With These New Features

Sunday November 17, 2024 5:18 am PST by
Apple released the AirTag in April 2021, so it is now three over and a half years old. While the AirTag has not received any hardware updates since then, a new version of the item tracking accessory is rumored to be in development. Below, we recap rumors about a second-generation AirTag. Timing Apple is aiming to release a new AirTag in mid-2025, according to Bloomberg's Mark Gurman....
Magic Mouse Next to Keyboard

No, Apple CEO Tim Cook Didn't Say He Prefers Logitech's MX Master 3 Over the Magic Mouse

Sunday November 17, 2024 3:03 pm PST by
While the Logitech MX Master 3 is a terrific mouse for the Mac, reports claiming that Apple CEO Tim Cook prefers that mouse over the Magic Mouse are false. The Wall Street Journal last month published an interview with Cook, in which he said he uses every Apple product every day. Soon after, The Verge's Wes Davis attempted to replicate using every Apple product in a single day. During that...
Generic iOS 18 Feature Real Mock

Apple Releases iOS 18.1.1 and iPadOS 18.1.1 With Security Fixes

Tuesday November 19, 2024 10:10 am PST by
Apple today released iOS 18.1.1 and iPadOS 18.1.1, minor updates to the iOS 18 and iPadOS 18 operating systems that debuted earlier in September. iOS 18.1.1 and iPadOS 18.1.1 come three weeks after the launch of iOS 18.1. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. Apple has also released iOS 17.7.2 for...
at t turbo indicator iphone 16 pro max v0 8hrh7w5f3w1e1

AT&T Turbo Indicator Showing Up in iPhone Status Bar for Subscribers

Wednesday November 20, 2024 3:42 am PST by
AT&T has begun displaying "Turbo" in the iPhone carrier label for customers subscribed to its premium network prioritization service, according to reports on Reddit. The new indicator seems to have started appearing after users updated to iOS 18.1.1, but that could be just coincidence. Image credit: Reddit user No_Highlight7476 The Turbo feature provides enhanced network performance through ...
iPhone 17 Slim Feature Single Camera 1 Redux

'iPhone 17 Air' Rumored to Surpass iPhone 6 as Thinnest iPhone Ever

Monday November 18, 2024 1:07 pm PST by
In a research note with Hong Kong-based investment bank Haitong today, obtained by MacRumors, Apple analyst Jeff Pu said he agrees with a recent rumor claiming that the so-called "iPhone 17 Air" will be around 6mm thick. "We agreed with the recent chatter of an 6mm thickness ultra-slim design of the iPhone 17 Slim model," he wrote. If that measurement proves to be accurate, there would be ...
bug security vulnerability issue fix larry

Make Sure to Update: iOS 18.1.1 and macOS Sequoia 15.1.1 Fix Actively Exploited Vulnerabilities

Tuesday November 19, 2024 10:52 am PST by
The iOS 18.1.1, iPadOS 18.1.1, and macOS Sequoia 15.1.1 updates that Apple released today address JavaScriptCore and WebKit vulnerabilities that Apple says have been actively exploited on some devices. With the JavaScriptCore vulnerability, processing maliciously crafted web content could lead to arbitrary code execution. The WebKit vulnerability had the same issue with maliciously crafted...

Top Rated Comments

mannyvel Avatar
51 months ago
All that stuff is in the health app/healthkit, and is saved forever. You turned that on when you turned on ambient noise and sound level monitoring, and you can turn it off if you want.

Come on people. If you pretend that you care you should at least pretend to understand the basics of what you consented to.
Score: 26 Votes (Like | Disagree)
Mansu944 Avatar
51 months ago
Well, doesn't seem to serious, but I am glad they told us.
Score: 18 Votes (Like | Disagree)
Realityck Avatar
51 months ago
Yes very forthcoming with reporting bug and its remediation.
Score: 13 Votes (Like | Disagree)
bobmans Avatar
51 months ago

Why does it even log all this data by default? If it can upload historical data from before you did participate, it must also be logging a lot of other stuff forehanded.
Uhm, did you know there's a health app on your phone? What is a health app without data about your health?
Score: 12 Votes (Like | Disagree)
Analog Kid Avatar
51 months ago
I agree it's refreshing for a company to be upfront and quickly resolve an issue, but Apple needs to be better than this. Bugs like this shouldn't happen, certainly not on anything that resembles a medical study.
Score: 9 Votes (Like | Disagree)
azmscle Avatar
51 months ago

This sounds fine and dandy. Good response. EXCEPT the part about historical data... Now I'd like to know if they accidentally had access to historical data about headphone volume, etc... what other historical data do they collect on my device? If something as seemingly frivolous as headphone volume is kept, that means lots of other "historical data" may be collected. And if that's the case, other breaches in security (thinking Cambridge Analytica type issues here) may be harvesting that said data. Things like historical data of keystrokes would be a nightmare.
It specifically states that the historical data was only collected on the authorized data types. But go on and keep fear mongering.
Score: 7 Votes (Like | Disagree)