A relative of mine received a call from (833) 662-4666 saying that there was a “dangerous” infection on their Mac and they needed to call (833) 334-1333 to talk to a “certified iCloud technician.” Just putting it out there for you guys to know. Also, feel free to call and have some fun with them if you want 
@Drumrocker365#13980 i received that same phone call just a few minutes ago. I don’t even have an icloud account. Obvious it’s BS.