Question: My Macbook Pro Screen flashes black once whenever I open my online banking browser. Is my mac being hacked every time this happens? What does this mean?
Whenever I am about to sign in to Natwest online banking my Macbook Pro with Retina Display flashes black once very quickly.
It's been happening for a few months now and it doesn't occur in any other situation or with any other website.
MacBook Pro with Retina display, macOS Sierra (10.12.6)