The differential privacy technology used by Apple is rooted in the idea that statistical noise that is slightly biased can mask a user’s individual data before it is shared with Apple.

If you believe that you've discovered a security or privacy vulnerability in an Apple product, learn how to submit your research. Get the latest software updates from Apple

For issues not mentioned in release notes, send feedback through Feedback Assistant. When writing your report, please include the full version number in the title and in the description.

Nov 8, 2023 · This release includes bug fixes, increased stability and performance improvements for iPad 2 and iPhone 4s. For information on the security content of this update, please visit …

Dec 6, 2017 · In this article, we have presented a novel learning system architecture, which leverages local differential privacy and combines it with privacy best practices.

Dec 4, 2023 · This document describes the security content of iOS 8.1.3 For the protection of our customers, Apple does not disclose, discuss, or confirm security issues until a full investigation …

Apr 14, 2025 · Building on our many years of experience using techniques like differential privacy, as well as new techniques like synthetic data generation, we are able to improve Apple …

This document describes the security content of iOS 8. For the protection of our customers, Apple does not disclose, discuss, or confirm security issues until a full investigation has occurred and …

Sep 9, 2014 · iOS 8 will be available as a free software update starting Wednesday, September 17 for iPhone 4s, iPhone 5, iPhone 5c, iPhone 5s, iPod touch 5th generation, iPad 2, iPad with …

When you submit a new or updated app, you must provide details about your privacy practices and the privacy-relevant data you collect so the App Store can display the information on your …