Apple has issued a security update to OS X 10.11.6 to mend a kernel factor.
Apple has launched a supplemental security update for OS X El Capitan. Security Update 2016-003 may also be discovered via heading to the Updates tab within the Mac App Retailer on a system operating OS X 10.11.6.
This update is supposed to mend a kernel factor that would purpose your Mac to develop into unresponsive. You are able to in finding additional info in this update's security enhancements as soon as Apple updates is security support site.