Question: how to know if you have a virus mac?
Answer: Adware. Adware are unwanted programs that bombard users with pop-up advertisements. ...  Trojan horses. Trojan horses can infect both Macs and PCs, and they are often deployed through fake software installers or unsecured updates. ...  Macro viruses. ...  Ransomware. ...  Pop-up ads. ...  Slowness. ...  Browser issues.