Git Update
So Git recently announced a security vulnerability and a corresponding fix. From my understanding "If your Git installation remains un-patched, then a malicious person could over-write the .git/config directory in one of your repositories. This would allow them to alter your Git history and make changes in the repo without your knowledge. Details."
Even though the issue may not affect Linux users, if you are a hosting service whose users may fetch from your service to Windows or Mac OS X machines, you are strongly encouraged to update to protect such users who use existing versions of Git. ~Git Core Team
So to prevent this from ever happening you have to updated your Git.
Step one: Figure out what version of Git you are running
"git --version"
If you are running anything before 'git version 2.2.1' You need to update
Step Two: If you haven't already installed Homebrew (makes it easy to install and maintain Git.) Please go ahead.
once you have already downloaded or updated Homebrew, use Homebrew to install Git
"brew install git"
"brew upgrade git" (if you already have git installed"
This will update and install the latest Git version (should be that easy).
This worked for me, so hopefully it will be as easy for you. There are many open source guides and instructions to help if you get tangled along the way.