Avast products were the most used antivirus globally, but when it comes to North America – Norton rules. A recent report from OPSWAT on quarterly market share and usage data for antivirus software for Q4 2010, said that avast antivirus product line were the most used antivirus products globally with 17.53% of market share. ESET Software and Symantec products were in following positions with 12.05% and 10.04% of market share respectively. Together, these top 3 AV vendors occupied around 40% of the global antivirus market.

ESET Software was the largest gainer for Q4 2010 with 6.39% increase in market share since June 2010. Kaspersky labs and Panda Security were the other product lines which gained notable market shares with 2.46% and 2.50% increase respectively.

In North America, only 5 out of the 53 antivirus vendors detected, constituted for a majority of antivirus market with 60.74%. Symantec Norton was leading with 16.45% of the market share. Top 2 antivirus software globally – ESET and Avast – also stood top in North America with 12.86% and 10.86% market share respectively. Together, these top 3 AV vendors occupied nearly 40% of the North American antivirus market.

Microsoft’s Security Essentials was leading the North American individual antivirus products market with 10% share. Avast! Free AV and ESET NOD32 AV were in following positions with 8.81% and 7.75% of market share respectively. Norton AV and Norton 360 stood in 4th and 6th positions, with the AVG Free AV being ahead in position 3.

However, only 60% of the 90,000 cases considered by OPSWAT globally, had an antivirus application installed. What seemed interesting was that free antivirus accounted for 58% of the installations (in July 2010, it was 42%). Thus, a majority of the AV users were using free solutions offered by vendors.

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