Apple has just published a security update which you can get from the OS X App Store > Updates:

[cid:3F1AD6AC-1B39-4A8E-A061-55C450EE50C9@cc.umanitoba.ca]

This update addresses a critical security issue with the software that provides the Network Time Protocol service on OS X, and is recommended for all users.

Wayne Billing Classroom Technology Support Audio Visual and Classroom Technology Support Computer and Network Support 130 Machray Hall Building 204-474-6649 204-807-3153 (cell) 204-474-7625 (fax) Wayne_Billing@umanitoba.camailto:Wayne_Billing@umanitoba.ca