The push is that all devices will end up connected as commodity manufacturers continue to search for 'value-add' services (even if that value is dubious). In a few years, I wouldn't be surprised if 'smart TVs' were the only ones available. Security also becomes an afterthought as companies rush to get products in the market. This is mainly because the components used to build software rarely take account of security/privacy themselves so it has to be considered by the developers -- who are rarely trained to handle it.

One approach to this is to build new tools and components that incorporate security & privacy by design. Discarding elements that are not required for a particular use case is also beneficial as there's less a hacker can do if they do manage to get in.

These approaches are captured in ideas behind unikernels, such as MirageOS [1], which themselves can be part of a larger stack [2]. I work on both of these and we even put together a contest (Bitcoin Piñata) to incentive a search for weak spots (and a bit of fun) [3]. I honestly think that only new software stacks or government regulations can fix these issues. Given mass-surveillance, I don't hold out much hope for the latter.

[1] http://mirage.io

[2] http://amirchaudhry.com/brewing-miso-to-serve-nymote/

[3] http://amirchaudhry.com/bitcoin-pinata/ and https://news.ycombinator.com/item?id=9027743