You can find your iPhone when it’s turned off because certain chips stay in a low power state mode so they can talk with the Ultra band Network. Researchers from the Technical University of Darmstadt in Germany found that one of those chips, the one that enables Bluetooth, can be exploited, and hacked to install malware on the phone—even when it’s turned off. However, the exploit requires that the phone first be hacked and jailbroken first making this less threatening. Still, they say it might be useful to grab other sensitive data and to continue to receive data when the phone is turned off.
Motherboard has the story.