Pardon me, but isn't protection against security breaches the OPERATING SYSTEM'S JOB???
Partially, but it isn't the operating system's job to stop the user from being an idiot. If you want to run executables from suspicious websites, that's your right. And if the rest of the world wants a device to stab you in the face over the internet, that's their right, too.
I have two browser windows open at the moment, but they have probably 200 tabs between them - most of them from... well, take a guess.
Even if we cut out the TV Tropes tabs, I'm still probably in the 20 or 30 region.
The giant corporations are winning. Ask people if they think it more likely that genetic research will result in exciting new medical treatments or be used by enormous health insurance companies to deny coverage.
What people think is not the same as reality. In the U.S. at least, using genetic information to deny insurance coverage is illegal. Of course, people will believe what they want to believe, which just emphasizes the GP's point. I'm sure plenty of my beliefs are wrong, too.
A list is only as strong as its weakest link. -- Don Knuth