Yet Again, Microsoft Security Essentials has failed AV-Test's antivirus certification, after not meeting the criteria to pass their December 2012 testing suite. AV-Test conducts antivirus software testing every month, pitting 25 programs against 0-day attacks and known malware while also testing the repair capabilities of the software and its usability. To pass certification, the app must score at least 11 out of a possible 18 points across the three tested categories; MSE scored 10 and so just managed to fail the criteria.
Security Essentials failed largely due to poor protection against 0-day real-world attacks, protecting against only 78% of attacks. While this may not sound particularly bad, and it's an improvement over 71% protection of November, it still falls well short of the industry average 92% protection in this area. MSE also failed to meet the industry average detection of malware discovered in the last 2-3 months, scoring just 90% compared to an average of 97% across other suites. An overall poor Protection score of just 1.5/6.0 meant MSE couldn't manage the required 11 points.
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