But, isn't that backwards? 20 year old systems have been thoroughly exploited and usually do not benefit from more recent updates. It's true you can't patch eve

But, isn't that backwards? 20 year old systems have been thoroughly exploited and usually do not benefit from more recent updates. It's true you can't patch every single vulnerability, but probability is a huge factor in risk. If many of the common exploits have been patched, it's simply harder for your average hacker, the difficulty and opportunity cost just go up.