I have a 2012 mac mini running 10.15.7. I am assuming that after the upcoming fall release of Ventura security updates for 10.15 will stop. I use my 2012 mini as our home file server and it runs headless, so I have remote access enabled for my internal network only. I use an edge router for my firewall and no ports are exposed on the mini. I do not use the mini for websurfing but I do have backblaze, one drive and google drive & relizo sync installed, these services can access the internet. Should I be worried about the future lack of security updates?