On Christmas Eve the screen on my wife's 2015 MBPr froze up and she could get no response. Then a message was displayed stating they represented Apple Computer and listed an 888 number to call for assistance.
They instructed her to enter information. A few minutes later they said her computer was infected and could fix it if she gave them her credit card number. During the next 3 hours, they installed programs and totally modified her internet access. It was a 2 person team who requested call backs to a different number and other instructions about how to use her new internet access.
I became aware of this 'change' when trying to access my Yahoo homepage and Yahoo Mail in Safari on my 2017 iMac. A page was displayed saying "Safari Can't Open the Page" ....."because Safari can't establish a secure connection to the server "login.yahoo.com".
End result was a $399 Visa charge and numerous programs in Applications, Libraries, Utilities and other places.
Can anyone instruct me on where I can access instructions to erase our hard drives and re-install the original Apple S/W? There are just too many added files in hidden locations for me to just erase the new files. There were also security changes that I cannot find that will not allow me to access about half the websites I need to use.
They instructed her to enter information. A few minutes later they said her computer was infected and could fix it if she gave them her credit card number. During the next 3 hours, they installed programs and totally modified her internet access. It was a 2 person team who requested call backs to a different number and other instructions about how to use her new internet access.
I became aware of this 'change' when trying to access my Yahoo homepage and Yahoo Mail in Safari on my 2017 iMac. A page was displayed saying "Safari Can't Open the Page" ....."because Safari can't establish a secure connection to the server "login.yahoo.com".
End result was a $399 Visa charge and numerous programs in Applications, Libraries, Utilities and other places.
Can anyone instruct me on where I can access instructions to erase our hard drives and re-install the original Apple S/W? There are just too many added files in hidden locations for me to just erase the new files. There were also security changes that I cannot find that will not allow me to access about half the websites I need to use.