To prevent possible surveillance of the movement profile within one’s home, researchers from the Max Planck Institute for Security and Privacy, the Horst Görtz Institute for IT Security at Ruhr-Universität Bochum and the Cologne University of Applied Sciences have developed a novel system for protecting privacy in wireless communication.
Almost all Internet-of-Things devices, such as voice assistants, locks and cameras, rely on wireless connections based on high-frequency radio signals... passive eavesdroppers can still exploit sensitive information from intercepted radio frequency signals... Attackers can perceive such effects from a distance and, by applying simple statistical methods, conclude, for example, that a person is currently moving in the monitored room... this method known as “adversarial wireless sensing”...
With their approach, the researchers are the first in the world to propose IRS as a practical countermeasure against passive wireless eavesdropping attacks. more
