Good evening everyone. I recently bought a Macbook Air about a month ago, and I have been using it for work and study stuff mainly (so basically Office and Safari, nothing else). I haven't even downloaded any software or anything like that. Last week a weird pop-up started to appear, and after doing a little bit of research it appears to be a virus??? And it seems very weird since I haven't done anything "dangerous" with this computer, and it is new! I have deleted History and Cache, but apparently it keeps coming once or twice a day. I've uploaded a print screen of the pop up. Could you please help me? Thanks!