I believe I've downloaded a virus through a website I visited. Safari has become dysfunctional by constantly opening multiple windows with a screeching background noise. I've run a scan with Sophos but it found nothing and the problem continues.
Mac mini (Late 2012), OS X Yosemite (10.10.5)
There isn't one. They are trying to scare you into downloading something that may be bad for your computer.
How to block pop-ups in Safari - Apple Support - https://support.apple.com/en-us/HT203987 - "Learn how to block annoying pop-up ads on your iPhone, iPad, iPod touch, or Mac."
Feb 2017 macjack post on dealing with Safari virus warnings [on Mac] - https://discussions.apple.com/thread/7867552?answerId=31415398022#31415398022
April 2018 VikingOSX post - https://discussions.apple.com/thread/8350243?answerId=33262151022#33262151022
A Browser Pop-up Scam has Taken Over Safari - https://sites.google.com/site/appleclubfhs/support/advice-and-articles/browser-p opup-hijack-safari
There isn't one. They are trying to scare you into downloading something that may be bad for your computer.
How to block pop-ups in Safari - Apple Support - https://support.apple.com/en-us/HT203987 - "Learn how to block annoying pop-up ads on your iPhone, iPad, iPod touch, or Mac."
Feb 2017 macjack post on dealing with Safari virus warnings [on Mac] - https://discussions.apple.com/thread/7867552?answerId=31415398022#31415398022
April 2018 VikingOSX post - https://discussions.apple.com/thread/8350243?answerId=33262151022#33262151022
A Browser Pop-up Scam has Taken Over Safari - https://sites.google.com/site/appleclubfhs/support/advice-and-articles/browser-p opup-hijack-safari
Many thanks. That seems to have resolved the problem.
Deleting a virus
