Free antivirus programs such as Microsoft’s Security Essentials (MSE) have now supplanted more complex paid software as the antimalware defense of choice for millions of consumers. Traditional security brand leaders Symantec, McAfee and Trend Micro were found on only 8.77 percent, 4.5 percent and 2.15 percent of systems respectively. European upstarts have gained traction, with ESET Software, Avira, and AVG easily making into the top 10 of most common antivirus applications.”]

