Chinese Researchers Identify Smartphone Apps via Leaked Signals in Non-Contact Forensics Method

2 articles · Updated · South China Morning Post · Jul 7

A Chinese research team said faint low-frequency electromagnetic emissions from operating smartphones can reveal which apps are running and what actions users take.
The method, published May 22 in the peer-reviewed journal Radioengineering, works as a non-contact forensic technique without accessing a phone’s operating system or stored data.
Researchers at the People’s Public Security University of China said the approach could give authorities objective technical corroboration for digital evidence and other non-contact investigations.

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