* Most IoT devices take the walled garden approach, restricting which devices and brands can work together, which undermines the ideal of freedom associated with the Internet<ref>[https://www.insidetheiot.com/freedom-walled-garden/ Freedom and Walled Gardens, Inside the IoT]</ref> | * Most IoT devices take the walled garden approach, restricting which devices and brands can work together, which undermines the ideal of freedom associated with the Internet<ref>[https://www.insidetheiot.com/freedom-walled-garden/ Freedom and Walled Gardens, Inside the IoT]</ref> |