Divorce, domestic violence, internet-connected devices
Here's a link to a 2018 New York Times article, detailing how some people feel manipulated and controlled by their abuser, due to the existence of internet-connected devices in their home. These can include thermostats, Amazon Echo, Google home, and other appliances that are controllable through a smartphone app or other internet means.
Thermostats, Locks and Lights: Digital Tools of Domestic Abuse
New York Times article