"On the second Tuesday of every month, the Microsoft Security Response Center (MSRC) releases security bulletins to notify customers that security updates are available to help protect against vulnerabilities in Microsoft software.
In addition to notifying customers that security updates are available, Microsoft security bulletins also serve to provide customers with information about the security updates that customers can use for their risk assessment, testing and deployment of security updates, and verification that security updates were successfully deployed..."
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Thomas W Shinder, M.D., MCSE
Sr. Consultant / Technical Writer