Do you have any information about how old versions of Mac OS receive security updates? As far as I'm aware, I don't really see any updates come through in the r

Do you have any information about how old versions of Mac OS receive security updates? As far as I'm aware, I don't really see any updates come through in the regular update section of the settings. It might've happened if there was some ridiculous vulnerability... But I otherwise don't think I've seen any general security updates show up (even after newsworthy events). Also I keep asking this and keep getting 0 or bad answers. When people say web browsers, and specifically JavaScript, are to blame for almost all security issues -- What specifically are you referring to? In almost every case I've looked into, what happens is somebody downloads some sort of file that is actually an .exe. Like TaylorSwiftGreatestHits.mp3.exe for example. It's almost always on a very old Windows version that has literally never done any updates. Sometimes some JavaScript initiates the download of this file. When this then makes the news and is finally reported, the entire fault is explained as "JavaScript" or "Internet Browser" fully automated bug that requires 0 user input. In reality, the user downloads the .exe and is prompted by Windows security to not run this file. They say run it anyway. Windows says the file was still not run for some security reasons. So the user disables the entire security system. Then the file says it must be run with administrator rights. They then run it once again with admin rights. Finally, X bug happens or is initiated. This is constantly the ONLY actual event I come across where there is some crazy vulnerability. I have literally never seen something that's not this situation. Back to my original question, if this is NOT actually the case, and there is verifiable information from any reasonably competent computer person, let me know so I can finally learn more.