A number of undocumented features in iOS have been found to essentially create backdoors for siphoning large amounts of users’ personal data from Apple devices. The data-stealing avenues have evolved over the last few years and may have been used by the U.S. National Security Agency. One service that bypasses backup encryption is called mobile.file_relay, which can be accesses remotely or over a USB connection, researcher Jonathan Zdziarski says. Apple has denied working with the NSA on backdoors to its products.”]
Source: https://www.csoonline.com/article/2455975/researcher-finds-backdoors-in-apple-ios.html