@sgt10
The threat that is most talked about is the machine being used to host malicious code. Not that someone is looking to steal your personal secrets, but rather you machine being used to launch attacks against others. If you have heard of denial of service attacks, basically millions of devices trying to connect to the web/mail/etc server of another person with the end result being to deny any legitimate traffic from getting through.
The attacker would demand money from the target and if they don't pay the infected devices would be used to launch an denial of service attack.
In order for any of these devices to be infected they need to be exposed to the internet and not behind a firewall. Virtually every device is now behind a firewall. These devices do not initiate connections to websites other than their manufacturer. They are not going to become infected.
Miele devices don't talk directly to anything other than Miele's servers. When you send commands to the washer/dryer/etc. they are not sent directly. They go to Miele's servers. The washer/dryer/etc then are sent commands by Miele's servers. This means ALL commands are inspected before being relayed. This is also what allows you to poll the status of your machines when not at home.
This is the reason why I am not worried in the least. I actually wish Miele would do more with this technology than they are. I would love a running total of how many cycles have been run, broken down by cycle (Normal: 32, Sanitize: 10, etc.) Maybe a running total of hours in use, water used, electricity used, detergent used, etc. How many cycles per week, what days we do the most, maybe a complete log. The same for the dryer.
I think they don't do this yet as it would really point out how well the device is holding up. Imagine they put in a life expectancy of 10,000 hours and then had a "life remaining" picture or image. You could put in the amount you paid along with your cost of electricity and detergent. You could then see how much you have spent in total and how much each load cost averaged over time.
These are all wishful thinking, but I think these would all be EASY for Miele and would provide lots of useful information for owners.
Instead of giving end users textual instructions, use the app to walk customers through how to perform minor repairs with pictures and using sensors to confirm things are done properly, etc.