I have a rooted Nexus5/ v.4.4.4 with CyanogenMod 11 M8 that has been working flawlessly. Seems Google Play Store has updated today and forced phone to reboot. Store started automatically updating 2 apps which I chose to not update. I have always had setting set to not auto update. Updated store changed that. I changed back to not auto update and uninstalled 2 apps. Using Titanium Backup, I restored the 2 apps. During the restore process you get a message asking if you accept or decline having Google to " regularly check device activity for security problems, and prevent or warn about potential harm." Whether you check to accept or decline, the 2 apps start auto updating again. I uninstalled and went through this process 2 - 3 times.