@872ab8e1 "With 0-days hitting Chrome, iOS, and dozens more this month, is no software safe?"
Of course not.  That's the nature of exploits.  And there will always be some crazy condition that breaks things.  It's impossible even to know them all.  The closest thing any software gets to being safe is just if it's not used enough for hackers to bother with it.  Someone still might hack it just for the sheer heck of it, so even that isn't a guarantee.