Unwanted device connected to my network
I just signed up with xfinity about a month ago, my first time handling my own home internet. Before it was roommates etc. I noticed through the xfinity app on my phone there was a device labeled as model "linux device" and operating system "linux" connected to my home network. I do not own any device running linux and I'm worried because I've heard linux is good for hacking...I paused the device easily enough but came here for suggestions on what else I can or should do about this issue. Thanks in advance.