Therefore, the ads usually conceal underlying content, thereby diminishing the browsing experience. Furthermore, PUPs often deliver malicious ads using various tools that enable placement of third party graphical content on any site. Potentially unwanted programs are also known to gather various information that might contain personal details. They misuse system resources without users' consent, thereby significantly diminishing overall computer performance. Be aware that some malicious websites and PUPs mine cryptocurrency or run other unwanted processes in the background. This error can be removed by closing the web browsing or rebooting the system.
Therefore, we strongly advise you to ignore 'WARNING! MAC OS Is Infected' and to never call the aforementioned telephone number. Then they claim to detect additional errors and offer further help for an additional fee. Once connected, cyber criminals stealthily install malware and/or change system settings. In addition, these people often trick users into granting remote access to their computers. In fact, cyber criminals claim to be certified technicians and attempt to monetize their services that are not needed. This error is fake and has nothing to do with Apple. Bear in mind, however, that 'WARNING! MAC OS Is Infected' is a scam. Certified technicians then supposedly guide users through the malware removal process. Users are advised that they must not hesitate to call Apple technical support via the telephone number (' 1-84') provided.
This error states that the system has been infected and that the malware must be removed and system repaired immediately.