The AV Test Institute, a German IT security and anti-virus research firm, regularly conducts tests on some of the most popular antivirus software products in the market. During its recent test for the months of September and October, it revealed that Microsoft’s very own antivirus software, Microsoft Security Essentials, had failed to pass AV Test’s certification. The interesting part is that the rest of the security products which included AVG, Avast, F-Secure, Bitdefender, and nineteen others, all received certification from the security research firm.

AV Test conducted realistic test scenarios and tested the products against real-world threats. The products had to demonstrate their capabilities using all components and protection layers. AV Test rated each product according to three categories – protection, repair, and usability. While Microsoft Security Essentials got a high score for its usability, it got a very low score in the protection category, particularly in the protection against malware and web/ email threats. On the other hand, Bitdefender Internet Security got the highest score as well F-Secure Internet Security and Kaspersky Internet Security.

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