As announced on July 1, 2009, AhnLab, CA, and Sophos engines will be retired on December 1, 2009. As of this date, customers will not receive any updates for these retired engines. Any customers running the AhnLab, CA, or Sophos engines must disable these engines before December 1, 2009, and select from the new set of five engines – Authentium, Kaspersky, Microsoft, Norman, and VirusBuster.
While making these changes, customers are also encouraged to upgrade to Forefront Security for SharePoint with Service Pack 3, which include a rollup of the latest software fixes.
For more information on the engine revision strategy, see the Antimalware Engine Notifications and Developments Web page or contact Forefront Contract Administration.