Here is a fake apple popup

http://macsecurity.network/alert/02-02-X66GwaXYN3C/index.php?ip=66.176.8.112&osversion=MacOS%2010.13%20High%20Sierra&browser=Chrome&language=en&cep=x15ora306TE8H8xciFMfy6qwJI56qSOsZ94dU_AZ7boGKXGSOYPhne3TrawvHbRWK7gS9vUq6EoTGLbE1CdBy466rUl-CjEZLWpanywWvEewCHvvlblpjYb1mzp8TGD2YFdo-yiOSgtW2UScxWB9wV1PJF4p8ONcXt4GunxGGDaigCZhQWezNzoufyfgZwP6_HhYvk-AnLQwRXQ4DlfkyQ#b