I can see maker technology finding its way into food preparation - automated fast foods. Domestic robots along the line of a more sophisticated roomba could be a thing. Sensor driven lights and environmental control are available today but your fridge isn't going to send a message to your hand computer as that's a security hole. Voice control is a security hole unless your AI gets savvy enough to infer context around its instructions. Imagine a burglar playing a synthesized clip of the householder asking Siri to open the back door. Deep learning tech is available over the interwebs that makes that a possibility today.
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I think that within a generation or two cyber-security is going to be so deeply embedded into society's values that consumers won't touch connected tech if they can possibly avoid it. You don't have to stick your neck out all that far to predict that we're less than a generation away from politicians or other VIPs getting blackmailed with nude selfies that someone scraped off a supposedly private messaging system.
Sending the email to your phone is not a security risk - provided the phone's email handler has no command pathway linkage. If it does, the phone's compromised anyway. Allowing emails to control the fridge, however, is.
Sending an attachment is more risky - but proper sanitization for type reduces that to a level that's acceptable. Secure email doesn't include anything other than cryptographic text.
One thing I do expect to happen more and more is separated data memory vs command memory - not just software separation, but literal "You cannot access the program memory at all with a program's poke" and "program write access is physically disabled to the operational memory". Essentially, EEPROM command memory, and only the EEPROM can be used for operational codes. memory commands work off bus B; JSR, JMP, CJMP work off bus A, which is connected to the EEPROM, or possibly a bank of swappable roms.
And the EEPROM can only be altered when physical jumpers are connected.
This dual bus technique hasn't been used for many years, but is the foreseeable next step.
People are quite unlikely to give up on the high tech goodies. It's far more likely that people will give in to the monitoring... exemplars of this are present in the modern world, but would be political, and that discussion has to go to the pit.
Security consciousness has NEVER been a stable state. If it were, there'd be far less success in intelligence operations. Even at Hyde park in WW 2, there were leaks.
LNoT (local net of things) is so vital to modern systems as to be practically essential. Jets, for example, use INoT technology, but without external I/O to/from the net - isolated net, requiring physical access to compromise. No Bluetooth, no Wi-Fi. And command sanitized inputs from the radios.
Homes are likely to go LNoT simply due to the excessively high signal interference.
Your voice response system is likely to be local A/I voice rec, then send simple (human readable ascii or UTF-x or equivalent) queries only once a send command is given, but after visually showing what's on.
And as for senators and naughty pix - that's bordering on rules violation. Still, hasn't had any visible effect yet. See also Kim Kardashian and A. Weiner - both of whom have known anything filmed can wind up in popparazzi or internet hands... and it didn't stop either of them.
Stupidity and laxity are part of the human condition: the "It won't happen to me" reflex.
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