Got a strange prompting from my iMac informing me that my "Network security is at RiskContact Technical Support" Contact Apple Certified Technician at (844)325-1334. Couldn't clear my screen so I called the number which sent me to 5 seconds of elevator music and then a foreign voice picked up and introduced themselves. I hung up and immediately was called by a number (877-821-4559). Didn't answer and they called again. I answered and could tell it was the same person. I told him I did not need any solicitations and he began cursing me out. Ha! Getting cursed out by a 3rd world country scammer. Just putting this out there if anyone would like to comment. I did get a message prompt on my iMac also that stated that "An unknown service (port 8770) is starting on your Mac. If I don't change my firewall settings, the firewall will block connections from other computers to this service on your Mac." Is this something that I should be concerned about?