Z-Wave protocol is widely adopted for home automation, it leverages low-energy radio waves for wireless communications over distances of up to 100 meters (330 feet) Researchers from Pen Test Partners have conducted an analysis of the protocol used by millions of IoT devices and discovered that it is vulnerable to cyber attacks. An attacker in range of the targeted devices during the pairing process (S0) can easily sniff the network key because it was shared between devices. The experts dubbed the attack Z-Shave”]
Source: https://securityaffairs.co/wordpress/72898/hacking/z-shave-z-wave-attack.html