Over 49,000 different threats reported to Microsoft in 2011

In a new Microsoft Security Intelligence Report, it was revealed that over 49,000 different threat families were reported to Microsoft’s Malware Protection Center in 2011. The company also reveals other facts about security changes over the years.

“This special edition of the SIR contains a look back at how the threat landscape has changed over the past ten years and includes trending data on vulnerability disclosures, exploit trends, malware and potentially unwanted software, regional malware infection rates, growth rates for Windows Update/Microsoft Update usage, and more,” Microsoft stated in an official blog post.

In the report, Microsoft mentions that anti-malware signature files have changed over the past few years. In 2002, typical anti-malware files were less than 1MB in size. Today, they are more than 100MB in size. Microsoft also mentions that they have added more than 22,000 signatures to detect key threat families.

Microsoft also mentions that Adware detections increased significantly in the first half of 2011.

You can download the Microsoft Security Intelligence Report below, which contains much more data and insights in this new ten year review.

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