Don't forget that in order to be secure, you have to turn off the features that make it so fast. I have an old Mac with Xeon CPU that has not had software upda

Don't forget that in order to be secure, you have to turn off the features that make it so fast. I have an old Mac with Xeon CPU that has not had software updates since before Spectre and Meltdown, et al. I bought it for its performance and have my workflow finely enmeshed, so I don't plan on applying patches that intentionally slow it down. It sure is good at running Logic Audio. Don't need networking for that, so it is disabled. The CPU performance is more important than connectivity for its use and purposes. So it stays air gapped for the security, and unpatched for the performance.