Wow, great article. For those of you that see it as tldr;, four things:
1. Turn off Find my Mac.
2. Do not link your iCloud and GMail accounts
3. Turn on 2 step verification on gmail.
4. Do not give Amazon your credit card.
Don't use iCloud or any windows type hub in the sky. This type of tech it is the pot of gold for hackers. BTW it is also a big pie for apple and microsoft to cut up. It is nice when it works but it has serious security issues that are very difficult to remendy. If you really take a minute to think about most of what it offers is not needed. A large desktop in your home a removeable password protected osx card an {ipad/iphone} and a desktop at work. figner print reader on all 3 and just pull the osx card from one unit to the next.
you are mobile you are in sync with your own stuff. just have one restriction on the mobile device it only links to your two desktops not to apple.
so all downloads from the app store are onto your desktops. BTW to apple and or any hub in the sky if you do this i said it first I want a cut from the pie.