IoT devices don’t always need a continuous wireless transmission across long distances. Manufacturers often use short-range radio technologies to connect devices equipped with cheap, low-powered transmitters. These technologies allow devices to exchange low volumes of data at longer intervals, and as a result, they’re well suited for IoT devices that want to save power when they’re not transmitting any data. Examine them.
Looking for exploitable vulnerabilities.
Short Range Radio: Abusing RFID
Bluetooth Low Energy
Medium Range Radio: Hacking Wi-Fi
Long Range Radio: LPWAN