Stop OS X Spotlight Leaking Your Location
Proxying OS X Spotlight through Burp showed it shipping the user's latitude and longitude to api.smoot.apple.com on every search, with two ways to block the request.
macOS
The desktop side. Debugger work, and the things the OS sends home without asking.
2015
2013
iTunes anti-debugging bypass with GDB and LLDB
Defeating iTunes' ptrace-based anti-debugging on OS X by breaking on ptrace and rewriting the rdi register, and porting the bypass from Apple's GDB to LLDB to get a Python-capable debugger.