In this recipe we will try to use the security practices:
- Design the hardware such that it should be operational for the minimum required activity and time. Some IoT devices are battery-powered and can live a long life if this strategy is followed.
- Tampering with the device in the field is critical. While designing the concept of any IoT device, how it can be tamper-free needs to be considered. One could have an event or alarm raised when a device is physically handled.
- Any IoT device upgrade should be done in a secure way. This could be through physically travelling to a location and manually updating it through a secure application that is under the control of selected field engineers. Another way could be over-the-air ...