alert that my computer is locked
I clicked on a site and received an alert allegedly from apple that my "pc" has been locked and to call a number. I did not call the number given, but looked up "apple support" on my phone so I could report what I believe is a scam. The person answering sounded suspicious to me and kept asking for my email address. I hung up. he called me back. I hung up again and he called me back but I did not answer. How do I know he's legit? How do I report these things? My computer seems to be OK but I will run Norton as soon as I finish this message to you. Can you give me any advice? I could report the URL of the alert I received and the phone number they told me to call as well as the number I called.
Mac mini, 10.12