Chinese researchers find a peephole to any smartphone in its leaked radio signal

Researchers at the People’s Public Security University of China have developed a method that identifies smartphone applications and user actions through low-frequency electromagnetic radiation.

In their findings published in the peer-reviewed journal Radioengineering on May 22, the researchers described it as a non-contact forensic technique that worked without accessing a phone’s operating system or stored data.

“This technical approach can provide objective technical corroboration for evidence reinforcement in digital forensics and non-contact investigations,” the authors wrote.