Krebs demonstrated on the iPhone 11 pro, which runs Apples latest IOS 13.2.3 software. Although the personal location service is manually disabled in iPhone settings, the software continues to collect GPS data for some applications and system services. Whats more worrying is that even if the apps location service is set to never request the above information, the iPhone 11 Pro will still actively look for GPS data.
Obviously, there are some system services on this model (and possibly other iPhone 11 models) that request location data. If the location services are not completely shut down, users cannot disable these services, because even if all the system services using location are disabled separately, the arrow icon will appear on a regular basis, he explained
In IOS, users can enable and disable system location services by setting the user interface, and provide control over first party and third-party applications, basic IOS services and other apple features. These tools are supported in IOS 13, which greatly enhances the users control over the data sharing function and reduces the possibility of inadvertent location tracking function.
Previously, third-party applications could request continuous collection of device location data at initial setup, but IOS 13 removed this feature. In addition, when the always online tracking function is manually enabled in the settings menu, a pop-up window will appear regularly to remind the user and provide the option to turn off the configuration.
Apple engineers responded, we dont see any real security risks. When location services are enabled, it is expected to display the location service icon in the status bar. This icon is displayed for system services that are not disabled in the settings.
Crabbes believes that this situation of Apples new mobile phones may be related to the introduction of new iPhone hardware to support wi-fi6, but this claim has not been confirmed. (small)
Source: Qiao JunJing, editor in charge of Netease Technology Report