Google Nest Community

Having lots of trouble with connectivity. And looked at open source license. /fake_packages/Dropbear It goes on I'll attach screenshot. Is this Google??  

I have just installed nest a couple of months ago, and have many unknown devices and now a Google listed as device. Why am I seeing these and how are they getting on my home network? I've changed my password at least 3xs. now they are grey I can't re...