The Google patented product Nest contained a vulnerability which would allow hackers to pinpoint houses via the internet which used the Nest product. The product would send zip codes over the internet in plain-text and this is a big no no.
Researchers at Princeton University performed the research on the Nest product and they stated that:
Until recently, Alphabet’s popular Nest thermostat was leaking the zip codes of its users over the internet. This data was transmitted unencrypted, or in the clear, meaning that anyone sniffing traffic could have intercepted it
The research mainly focused on discovering what kind of information was being leaked by smart devices and “IOT” devices.
Sarthak Grover also stated that:
“Most devices leaked at least some kind of private information, meaning that anyone who can sniff traffic travelling over the internet may be able to find out what you’re currently doing inside your home”.
With the rise of IOT, a lot of information will be collected and communicated, it is important that all this information is secured and only viewable to the persons which should have access to it.