Hi
We have a few echos and it does not bother me.
However, please remember BT home hubs etc.. are auto enabled for BT Wifi unless turned off and do not have user permission first.
The issue would be the sharing aspects between amazon devices, whereas BT Wifi is not connected to all neighbours, amazon would be.
This has the potential to lead a huge DDOS using IoT devices easily if the protocol were to be broken into or the device hacked fully.
Some may say this may not happen, but when you realise all the major players have been hacked, even github etc... it shows nothing is 100% secure. Coupled to that, when they stopped SSLv3, the weakness was known for over 15 years and yet continued to be in use during those 15 years.
Finally, remember the microsoft virus, which ripped through all microsoft operating systems due to a network protocol no one realised was open and could still be used... same potential could exist at some point in IoT devices and then once used by bad people, how many devices on how many streets in how many cities/towns could be used by a single person to attack given amazon are trialling IoT to IoT devices, and at those quantities of IoT devices, you do not much bandwidth per IoT device to be effective
It is not reality yet, and may never be so no tin hats needed but if it were to happen...
Many thanks
John