This type of security is often overlooked in embedded devices, especially those ones that are connected to wifi/cellular for the first time. A good bit of advi

This type of security is often overlooked in embedded devices, especially those ones that are connected to wifi/cellular for the first time. A good bit of advice I received was "imagine someone is trying their hardest to break into your device at every interface. What can they do?". With that mindset you can then see where to firewall every connection to the outside world to the main controls of your system.