this was bound to happen eventually. it's not that macs and linux machines are inherently safer. well, maybe they're a little harder to hack into, but you shouldn't be worried about somebody hacking into your machine. you should be worried about getting something in your email, or running a compromised program or opening the wrong website.

see, here's the thing: windows had something like 95% market share at one point. i know it's gone down a lot, but it's still dominant. you're an 31337 hax0r. why bother with the machine with 8% or 13% market share? no, you want the high probability option. so you write your 1337 scripts to go after windows. or, windoze, as you'd call it.

that's the only reason that macs and linux boxes have less viruses targeted towards them. it's just a smaller market. and, again, most viruses spread nowadays through user behaviour. the weakest link is not your operating system, it's you.

macs are growing steadily but slowly. they might maybe hit 15% soon if the current rate continues, and 20% by 2020. with those kinds of numbers, it's not likely that virus makers will bother targeting mac users any time soon.

android, though, is dominating the market. 81% market share in q3. and these are the devices that people are using to connect directly to their bank accounts, credit card companies...

https://phys.org/news/2013-12-symantec-worm-linuxthreat-devices.html