Virus Protection

What virus protection app should you use on Mac Pro?

You need the latest updates Apple provides for your Mac.

Never install "anti-virus" software. John Galt's user tip Effective defenses against malware and other threats is essential reading.

antivirus apps, as well as apps that claim to "speed up" or "clean up" or otherwise "optimize your Mac are neither needed nor recommended. the things they are good for are causing major issues within macOS and separating you from your money.

the weak link in macOS is us, the end users. the best tool is the one found between your ears. you just need to use common sense. you may also want to read Effective defenses against malware and other threats - Apple Community. it's a long article, but well worth reading every word.