Research Reveals How iPhone Push Notifications Leak User Data
Security researcher Tommy Mysk has demonstrated that iPhone push notifications are being used by popular apps to covertly send data about the user.
In a new video outlining the practice, Mysk highlighted how certain iOS apps exploit a feature introduced in iOS 10 that is designed to allow apps to customize push notifications. This feature, initially intended to enable apps to enrich notifications with additional content or decrypt encrypted messages, has seemingly been repurposed by some developers for more secretive activities. According to Mysk's findings, various popular applications, including TikTok, Facebook, Twitter, LinkedIn, and Bing, are using the short background execution time granted for notification customization to send analytics information.
This practice is particularly worrisome because it circumvents the typical restrictions imposed by iOS on background app activities. Apple has always maintained strict control over applications running in the background to protecting user privacy and ensure optimal device performance. However, the push notification feature appears to have unintentionally provided a backdoor for apps to conduct background data transmission.
The type of data being sent includes unique device signals that can be used for fingerprinting and tracking users across different apps. Fingerprinting is a method of collecting specific information about a device, such as its hardware and software configurations, to create a unique identifier for the user. This identifier can then be used to track the user's activities across different applications, which can then be used for various activities such as targeted advertising.
Apple does not permit fingerprinting and will soon require developers to explicitly state why their apps need access to APIs that are often used for fingerprinting. This move is in line with Apple's efforts to strengthen user privacy, such as the introduction of App Tracking Transparency in iOS 14.5, which requires apps to obtain user permission before tracking their activity across other companies' apps and websites.
Popular Stories
Alleged photos and videos of an unannounced 14-inch MacBook Pro with an M4 chip continue to surface on social media, in what could be the worst product leak for Apple since an employee accidentally left an iPhone 4 prototype at a bar in California in 2010. The latest video of what could be a next-generation MacBook Pro was shared on YouTube Shorts today by Russian channel Romancev768, just...
An alleged unboxing video for an unannounced 14-inch MacBook Pro with the M4 chip was uploaded to YouTube today by Russian channel Wylsacom. The video was later linked to on social media platform X by Bloomberg's Mark Gurman. It is possible that this is the same MacBook Pro box shown in photos that were shared by leaker ShrimpApplePro in late September, as he claimed that this MacBook Pro...
Apple will announce several new M4 Mac models around the end of October, with the company planning to launch at least some of them as soon as Friday, November 1, according to Bloomberg's Mark Gurman. Writing in his latest Power On newsletter, Gurman said that Apple will launch a new M4 version of its low-end 14-inch MacBook Pro, as well as higher-end 14-inch and 16-inch MacBook Pro models...
Apple's new Vitals app for watchOS 11 appears to be impressing some users with its ability to detect potential illness days before symptoms manifest, according to recent reports on Reddit. The Apple Watch app, which analyzes key health metrics measured during sleep over the last seven days, appears to be providing early warnings of impending sickness for at least some Apple Watch wearers...
Apple intends to launch iOS 18.1 with the first set of much-anticipated Apple Intelligence features on October 28, according to Bloomberg's Mark Gurman. Writing in the latest edition of his Power On newsletter, Gurman says the release date is arriving this month later than initially expected, as Apple is reportedly taking extra time to ensure a smooth rollout and prepare its AI cloud...
We're nearing the end of the iOS 18.1 beta testing process, but Apple is continuing to make tweaks to refine built-in features ahead of when the software launches. With testing winding down, there are fewer new additions, but Apple has made changes worth noting. The new beta is available for both developers and public beta testers. Control Center In the Control Center, Apple has added new...
Rumors strongly suggest Apple will release the seventh-generation iPad mini in November, nearly three years after the last refresh. Here's a roundup of what we're expecting from the next version of Apple's small form factor tablet, based on the latest rumors and reports. Design and Display The new iPad mini is likely to retain its compact 8.3-inch display and overall design introduced with...
