How do you know that you have been eavesdropped?

A close-up image showing Apple's FaceTime application on an iPhone

A close-up image showing Apple's FaceTime application on an iPhone Source: EPA

Apple has released an iPhone update, which is included in the latest version of Apple's iOS 12 system, to fix a software flaw that allowed people to eavesdrop on others while using FaceTime. The bug enabled interlopers to turn an iPhone into a live microphone while using Group FaceTime. Callers were able to activate another person's microphone remotely even before the person has accepted or rejected the call. How do you know that you have been eavesdropped? Zhiyong Shan, Assistant Professor from Faculty in the EECS Department of Wichita State University, shared his knowledge on the topic.


The podcast is in Chinese Mandarin.


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