I have an aged mid 2010 Mac Pro as a backup computer that is still quite usable, however it is limited to Mojave without applying unofficial patches, which I do not wish to do. Last year I picked up a new Mac mini as my main machine, largely because I knew Apple would stop supporting Mojave with security updates later this year and my rough plan was to take the Mac Pro offline in a couple of months, so it is reserved for tasks like Photoshop.
I am in the process of changing ISP and will require a new router, so I have been looking around and reading up on different options. It seems some routers are more secure than others, so at a certain point I wondered how much of the security is down to the router and how much is down to the OS?
Just to be clear I am not trying to ignore potential security risks, far from it. I just want to understand the process a little better. In theory the Mac Pro should still be safe connecting to my server via FTP and I just need to avoid general usage online.