When and if the nuclear infrastructure is hacked and a resultant "Chernobyl like" event occurs, don't count on your radiation monitor stored in your backyard fallout shelter to give you accurate radiation readings Back to leaving your pet canary outside and observing how fast his feathers fall off. https://threatpost.com/vulnerable-radiation-monitoring-devices-wont-be-patched/126967/
The cost of fixing these vulnerabilites would probably be cheaper than the incoming increases in their product liability insurance rates.