Yes,
I did upgrade to El Capitan, but I think it came through my Facebook account or something. Because their is a remote drive I'd like to figure out how to fix this via terminal code. I also saw a Denial of Service attack on my home network, and well as IDG hacking. I've reported the incidents via ic3.gov report.
I originally used the default Comcast application software and it detected ARP cache poisoning. As well as a trojan downloader. But for some reason this client hasn't detected.