Define "security",
there's tons of insecurity in any given piece of software or hardware.
H/W
>firmware h/w backdoors with its own network stack (thanks to (((intel))) ), possibly even a baseband in the chipset/CPU (AMD and Qual/ARM is not immune to this!)
S/W
>s/w backdoors in the (((app)))
>LARPs telling you to use this and that software for OpSec but is actually CIA nigger agent (guess who?) to promote CIA'd (((OpSec))) tools
Net
External
Omni
Palemoon?
win10 makes it easier, but they try to fuck all americans the SAME way
So when are you going to demand that Android gets called renamed to Linux?
...
Depends on how you calculate security, you could say both Windows, GNU/Linux and Mac are all secure enough by default. But all the security goes into the trash can when the user manually runs malicious code, you can already do a lot of malicious stuff with just user privilege, the real problem is that we've made computers too easy to use for your average joe, windows shouldn't allow you to just casually double click an executable, the fact that it prompts you to run it as admin automatically is even more retarded, it's just way too accessible, if they at least had to, for example, open a terminal and chmod +x it, they would learn eventually, but it would at least give them the impression that what they're doing is a big deal (which it is).
Other than that, exploits which work remotely are rare, and third-party software is to blame a lot of the time.