NTP Critical Security Update for OS X Released by Apple, All Mac Users Should Install Now
Apple has issued a critical security update to OS X users aimed at patching an exploit with the network time protocol on most Macs. The update is labeled urgently as “Install this update as soon as possible” rather than a traditional name, perhaps indicating the importance of patching the unspecified issue with the Macs NTP.
All Mac users should heed the advice from Apple and take a moment to install the security patch.