POPups about serious problems with my mac lock me out of Safari and my computer.
Every time I go to a website with Safari I get new window or a popup telling me I have many viruses and issues and gives me an 800# to call. It locks me up. The more i select to the Leave the page the more popups I get. It appears to be a virus I suppose, but I have never had virus protection because, probably ignorantly, I believed MAC's didn't get virus. Please help.
iMac (21.5-inch Mid 2011), iOS 9.1