There is a low-power mode (Low-Power Mode) in the iPhone that still operates after it is turned off, which can allow users to continue to track the location of the phone after the phone is stolen. However, some researchers say this mechanism is risky, even if the device is turned off, hackers can still remotely monitor the target and run malware.

iPhone shutdown may also be hacked German university: hackers can remotely monitor in low power mode – Hong Kong unwire.hk comes via ChinaTechNews.com.