It’s true that if something is on the internet, it’s vulnerable to hackers. Anyone who claims otherwise just isn’t being realistic.
On an individual basis, though, this fear is overblown. It’s true that if the right vulnerabilities surface at the right time, a dedicated hacker might be able to disable your security system and even open your Smart Lock. But it’s difficult to do – much more difficult than breaking into a house the old-fashioned way.
Similarly, someone could theoretically mess with your sprinklers, but who’s going to bother doing that?
Read more: http://www.wallstreetdaily.com/2016/06/29/overcome-smart-home-downside/