Researchers from the University of Pennsylvania, USA, revealed an innovative technology called “WirelessAP”, allowing the use of regular car radars as a way to eavesdrop on phone calls.
The researchers pointed out that the technology depends on monitoring the very accurate vibrations issued by the smartphone while making calls, using radars similar to those supplied in self -driving cars, then converting these vibrations into texts written through artificial intelligence techniques.
The system is based on the fact that the sound waves when speaking over the phone occur very slight vibrations in the body of the device, not exceeding seven ومر m, but they are monitable by millimeter radars.
The team indicated that the danger of this technology is that it exceeds traditional encryption systems, as it does not need to penetrate the phone or intercept data, but rather “reading” the vibrations generated by the device, similar to the recording of earthquake measuring devices for earthquakes.
To overcome the confusion and noise in the signed signals, the researchers have developed a modified model of the Openai “Whisper” system, which is a system that specializes in speech recognition, which enabled them to convert distorted data into relatively accurate texts.
Experiments showed that the technology reached about 59% when tested on the Samsung Galaxy S20 phone from a distance of half a meter in a laboratory environment, while it decreased to only 40% when experimenting with practical use from one meter.
Experts believe that the continued development of car radars and their small size, in addition to integrating them with artificial intelligence, may pave the way for in the future to convert them into advanced spy tools capable of eavesdropping away. On the other hand, specialists recommended the need to develop additional means of protection for phones, such as insulating layers or special jamming systems, to reduce the risk of such attacks.
