My entire computer freezes

What I expected to happen was...:
The newest security update for Mac Os X is having compatibility issues and freezes the entire computer, forcing me to force shutdown.

What actually happened was...:
I am Playing Minecraft and my entire computer just freezes and doesn't unfreeze.

Steps to Reproduce:
1. Make sure the computer is up to date
2. Play Minecraft on Mac Os X
3. Play until it freezes the entire thing. (Doesn't matter if singleplayer or multiplayer)