Internet of Things, explained
The Internet of Things (IoT) includes smart thermostats, doorbells, fitness trackers, connected cars, agricultural soil sensors, factory machines, and city infrastructure like smart streetlights. Each device has sensors, some processing ability, and a network connection.
IoT allows automation and insight: a farmer can irrigate only when soil moisture drops, or a factory can predict when a motor needs maintenance. Devices often communicate over Wi-Fi, Bluetooth, cellular networks, or low-power protocols designed for long battery life. Security is a well-known weakness, since many cheap devices ship with default passwords and rarely receive updates, making them targets for botnets. Privacy is another concern, as connected devices can collect detailed data about daily life.