Microsoft Security Essentials, the free virus and malware protection software from Microsoft failed to pass the recent AV-TEST. In Windows 8, Microsoft has replaced the Security Essentials with Windows Defender which will be turned on by default for all the users. According to recent AV-Test, the effectiveness of Security Essentials in finding zero-day malware attacks, viruses, worms, and Trojan horses dropped from 69% to 64%, compared to industry average of 89%. It also had a 90% detection rate for malware and it is also below the 97% for the industry average.
In order to get “AV-Test Certified”, protection suite should pass 11 out of 18 available tests and in the Sep-Oct study Security Essentials failed to pass it. I hope Microsoft improves its security situation soon.