@blackbird71 Meanwhile later versions have introduced a whole new raft of flaws that may still need to be found and corrected.
In any case running any version of any operating system without also running a decent virus checker is just asking for trouble. The old adage that Linux and the like don't get viruses has long been proven not only false but dangerous.
I rather hope that in the over 50 years, since I started programming computers, that I have learned enough to accept that no Program whatsoever (including Operating Systems) is entirely free of bugs.
I recently discovered that a program I wrote over 40 years ago and has been in use by the mod on a daily basis ever since has just been found to contain a serious flaw that has been there all this time (and fortunately not taken advantage of).