My initial reaction was that this has to be some kind of sham or scam, but then deep talking infomercial guy came on and I found myself strangley compelled...
https://www.kickstarter.com/projects/akita/akita-instant-privacy-for-smart-homes?ref=discovery&term=Akita
Sounds too good to be true, but if it works there is definitely a need for this type of device.