I'mI don't know it got on my phone CM Security seemed to come out of thin hair. It is a very big pain in the. are. The doesn't eve show up as an app ; so you can't get of it. Any help would be appreciated.
Go to settings - security - device administrators and make sure that any CM app is unchecked on that list. Then try to uninstall from settings - apps or even from the Play Store. Tell us how it goes.
Uninstall like this:
Settings > Apps > CM Security > Force stop > Clear cache > Clear data > Uninstall
That does the best job of making sure no old files are left behind. Some uninstall scripts are not too good..