secure

I have a new Haswell 4670 system (Gigabyte Z87M-D3H MB) with a UEFI Windows 8. 1 Pro installation. All hardware follows CustoMac recommendations, so I'm looking to install Mavericks. My system currently has Secure Boot enabled in my UEFI/BIOS. To install Mavericks I assume I'll need to...

Macs are **% secure but I've been wondering if it's "technically" possible for a hackintosh distro maker or anybody out there to implement some sort of trojan or any other malicious software to the OS or even modify core files to steal personal info or passwords etc. Not accusing or blaming...