As previously announced, the digital certificate used to sign McAfee DAT content will expire in October 2014. Starting on September 16, 2014, the DAT files will be compiled with the new digital signature information.
This update has been tested by the various McAfee product teams and passed a successful customer evaluation period. This change should be transparent to customers and no product or configuration changes will be required. For more details on this upcoming change, see KB82613: