While some types of malicious software can remain undetected for months or even years, the presence of others is instantly noticeable. In 2020 alone, cybercriminals churned out almost 675,000 viruses capable of severely damaging your device and violating your privacy. New threats to Mac security emerge at an alarming rate. How to check your Mac for malware and remove it.Signs your Mac is infected with Malware.‘Does my Mac have a virus,’ you may wonder. Get leading antivirus, fast VPN, real-time safe browsing and instant ad blocking - all in one app.