From investigative journalist Brian Krebs:
Little Snitch reported today that Sonos tried to connect to a domain called tmp.sonoschina.com. I can't find much information about this domain, other than it is China-based but is out of a US ARIN IP block.
This is the first time I've seen something like that from Sonos. I said no thanks. I get that the hardware is made an assembled there, but this makes me worry maybe the data's going there, too.
A screenshot of the Little Snitch firewall for Mac OS asking whether to allow Sonos to connect to sonoschina.com.
Not seeing my Sonos devices connect to it but my controllers are doing so, see image.
V curious about this