How Dropbox Hacks Your Mac

That was actually designed to avoid typing credentials into "faked" password dialogs. The above mentioned "Secure Desktop" with dimming is not designed for that, but for the, rather hilarious, fact that it is trivial for a Windows program to hit any button on the screen it wants to. Having the permission requests pop up on a "Secure Desktop" prevents a malicious program from hitting the "Allow" button for it's own permission request. The funny part is that this is the exact kind of functionality dropbox is "hacking" itself access to.

Dropbox isn't hacking anything. They show the legit OS dialog requesting permission, and the user complies blindly.

Hence why I put hacking in quotes...? I'm just pointing out that Dropbox is arguably jumping through hoops to get access to functionality that Windows gives to basically anything that gets a toehold on your system.

The fact that windows has even less security (though I'd like to think you exaggerated), doesn't justify this at all.

It's a basic fact of the way Windows is designed. If you can get code to run on a Windows computer, you get a lot of power over that computer. Even more if the user is a local administrator. As someone that tests Windows computer network security on a regular basis, it is rather disturbing how much work you have to put into making a Windows network actually secure.