First of all, they have to already know you have that device.
Ie: any amazon smart device; which are becoming increasingly popular and found in many homes globally.
Also, I'm not taking about someone targeting me, you, or anyone specifically. I'm talking about someone wandering around looking for homes that happen to have a vulnerable device and seeing where they can get from there.
Really not hard to find.
THEN they have to hang around long enough for any sort of updates and shit to happen.
Trivial when you consider not everyone lives in a single-family home with significant yardspace around it. Apartments exist, so do smaller multi-family dwellings.
THEN THEN they have to try and figure out how to get any useful data from this connection
The useful info here being your WIFI password (the info this connection is intended to spread) allowing an attacker to piviot to the rest of your network.
THEN THEN THEN they have to find a way to remove said useful information to a device that can actually store it.
This would be where I've repeatedly talked about an attacker being able to purchase an amazon device, jailbreak it, and use it to connect to your network
They can buy a device from Amazon then have all the time in the world to figure out a method of retrieving data from it. Once a method is worked out, they then deploy it against unsuspecting victims. (ie any random home they can get near and find an amazon device thats broadcasting looking for new devices)
if someone is able to just walk up to your house with a random device and hang out long enough to establish a wifi connection and pull out any sort of useful data you have WAY BIGGER PROBLEMS
I completely agree which is why I'm not happy with Amazon providing a hole to achieve exactly that.