Pretty sure Unix, the foundation of everything OS X since forever, is an open system and all OS run on a version of C.
Stealing a macs shit is actually pretty easy via a webpage or email. The cost of entering the programming game is virtually 0 no matter the platform you choose and you don't have to be smart to make damaging software.
You seem to be stuck, like a lot of people, in the pre-2005 Apple era where at least you could say they ran on the PowerPC platform and it was every so slightly harder to program for.