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Sure, just brush off a sudo vulnerability.If it doesn't impact me, and has never had, I will. Just like I don't feel any need to run antivirus and anti-spyware on my Ubuntu box, whereas I do on any Windows box 1 own (3 of them).
>Virus != vulnerability.*
Well, the vulnerability has to be exploited to matter. Either by some virus, some hackers, some malware, creating a botnet, whatever. If it never does, or its always in the form of some trojan needing a stupid user to install it willingly, I don't care about it.
The mere existance of it is not really important. All systems had, have and will have some vulnerabilities.
I'm not some wide eyed believer in the invulnerability of OS X. I've cut my teeth on Sun OS (pre Solaris) and HP-UX, and I've run Linux since 1997.
I just don't care much for hypotheticals.
As for my data, I back them up. I can go back to a clean system, if anything happens, within 10 minutes with rolling archived bootable backups. And I re-install from scratch + dumb data in around 5 hours (I just did it a few weeks ago to try El Capitan).
>Security is like a backup. You only care about it when you have the random bad experience of actually needing it. I'm sure there are a bunch of Windows users who lament turning off UAC now that their files are all encrypted by ransomware. It has nothing to do with "market share" and has everything to do with risk: "UAC is such a stupid feature."
Well, it's kinda stupid. Even with UAC enabled the same users would just have gone ahead and authorized it to install the malware in the first place, not knowing what it is and just wanting to get it out of the way.
Besides, if they had earlier backups of said files, removing the ramsonware and restoring the original files would be a few minutes affair.
>I could leave my keys in my car ignition every night of my life.
And if you live in certain countries where car theft rarely or never happens, you'll be justified too.
There are countries were people sleep and even leaves their house with the doors unlocked and windows open.
Not because theft is impossible -- just because it's rare enough that barely even registers, and they don't feel any need to be paranoid.
It's a healthy lifestyle, even if 1 in 100.000 has something stolen from time to time.
Heck, it's healthy even if it's you that has had that misfortune.