Amazon will be launching the Amazon Sidewalk service on Tuesday that automatically opts-in your Echo and Ring devices into a new feature that shares your Internet with your neighbors. The service aims to provide Internet access to your neighbor’s devices when their Internet goes down or to give access to Amazon devices roaming throughout a neighborhood. The maximum bandwidth shared at a time is 80Kbps, with a hard maximum of 500MB per month. If you do not wish to take part in the service, you can opt-out before the service launches on Tuesday.
Source: https://www.bleepingcomputer.com/news/technology/amazon-to-share-your-internet-with-neighbors-on-tuesday-how-to-opt-out/