We install antivirus/malware software on our personal computing products thinking it may keep our personal info, banking info, etc. safe. The issue of online security is very complicated and essentially nothing is really secure.
"The adoption of IoT technology raises concerns over new and more imaginative cybersecurity threats, and this incident is a compelling reminder that the IoT devices are theoretically vulnerable to being hacked or compromised.
"There's a lot of internet of things devices, everything from thermostats, refrigeration systems, HVAC [air conditioning] systems, to people who bring in their Alexa devices into the offices," said Eagan.
"There's just a lot of IoT. It expands the attack surface and most of this isn't covered by traditional defenses."
Manufacturers majorly focus on performance and usability of IoT devices but ignore security measures and encryption mechanisms, which is why they are routinely being hacked."
The rest of the story is at https://thehackernews.com/2018/04/iot-hacking-thermometer.html