Fox news says you can hack a computer wirelessly. I believe a trusted news source way more than a nerd like you.
Ok so this is flame bait, but really, you can hack computers wirelessly
And its on OS X
All that involves is getting someone to connect to an access point. Of course no one would ever connect to an unsecured access point called linksys, and it's not like your computer won't auto connect to previously used AP.
This is an example and obviously fixed, however I'd be willing to bet that other bugs that work in a similar manner on all OS's exist (or will exist shortly.)