Security updates released from Apple on 3/21 March 22, 2016 by Approximately 56 vulnerabilities were patched in the security update released from Apple on 3/21. Please see the following URL for details. Security update for OS-X – versions 10.9.5, 10.10.5, 10.11.0-10.11.3 – March 21, 2016 https://support.apple.com/en-us/HT206167