ソリューションは必要ありません (情報共有のみ)
New market share report was just recently released via OPSWAT, that includes an antivirus vendor market share worldwide. Very interesting to check out and see where Symantec ranks compared to other AV vendors, for those interested it's available on their website: http://www.opswat.com/about/media/reports/antivirus-august-2013