I seem to be impervious to malware and viruses. Maybe because I don't download and run random exe files, don't get involved with suspicious e-mails, don't go to

I seem to be impervious to malware and viruses. Maybe because I don't download and run random exe files, don't get involved with suspicious e-mails, don't go to dodgy websites, have a firewall at home on which I can monitor all connections, etc. I refuse to use anti-virus software as well, it is the cure that is worse than the disease. My PC did get hacked in the 90s when I was running something like kernel 2.0.36. Look at all the trouble people are having with the meltdown/spectre updates. I haven't updated, I have no trouble. The odds of trouble if you update I think are much higher than the odds of any trouble from not updating. Keep in mind I'm talking about a PC behind a firewall not an internet facing server.