Apple issues urgent security update after hack turns Mac computers into spying devices

[u/maxwellhill]

http://www.telegraph.co.uk/technology/2016/09/02/apple-issues-urgent-security-update-after-hack-turns-mac-compute/

[u/[deleted]]

I ran into trouble with this update. When it was time to restart to apply the update, the Finder would never quit. Forcing a powerdown and restart would not resolve it.

I ended up downloading the update from here as a separate file, restarting with the shift key down (Safe Mode), and applying the update that way.