Pro-tip: never connect any appliance, vehicle or device to the internet unless you really need the internet-enabled functionality. What you want is dumb devices

Pro-tip: never connect any appliance, vehicle or device to the internet unless you really need the internet-enabled functionality. What you want is dumb devices that work reliably within their initial operating parameters and have a security air-gap. This prevents exploitation of their crufty software, but also prevents the manufacturer to brick or otherwise use them against you with unscrupulous updates. If a software update exists, you will apply it manually if you are bothered by the specific bugs. Never auto-update embedded software, never trust them on your network if they don't belong there, never trust their programmers to do anything but a half-ass hack, the absolute minimum required to get the product out the door, expecting they will issue updates.