Firstly: I also agree that you are being utterly paranoid.
Suppose Apple discovered an important network security threat (which they did recently) would it not be wise to push an update pronto? Or wait for the average dozy user to install the update? C'mon now!
Generally speaking, Apple is
not that interested in which sites you visit or your porn preferences, except to make it easier for you to access them. They're not (unlike Google/Android) in the business of personal data mining and use.
Secondly: If you're in the business of dealing with valuable/embarrassing data, you just have to know that the bare Net is NOT (and has never been) secure - to
any OS. Secure encryption on any remotely sensitive data is a MUST. Encrypt/encipher, use TOR or the darknet (unreliable), use an unusual language like Catalan or Maltese, use POTS, use proxies, use the postal service or public phones with your own acoustic coupler modem (remember those?).
Thirdly: Forget about personal privacy if you're going to use the Net - within days there is such an enormous amount of information that can be collated about you, your ideas and habits around that you wouldn't believe it. And if I
really want to know about your personal life I just have to sort through the trash you put in your dumpster.
Mac
