Microsoft Security Essentials automatically checked and downloaded the latest virus definitions from Microsoft Update which … See more

On 18 November 2008, Microsoft announced plans for a free consumer security product, codenamed Morro. This development marked a change in Microsoft's consumer AV marketing strategy: in… See more

The product's license agreement allowed home users to download, install and use it on an unlimited number of computers in their households free of charge, as long as each computer had a legitimately licensed copy of Mic… See more

The announcement and debut of Microsoft Security Essentials was met with mixed responses from the AV industry. Symantec, McAfee and Kaspersky Lab, three competing vendors, claimed it to be inferior to their ow… See more

On 29 September 2010, a year after its initial release, Microsoft announced that MSE had more than 30 million users. The Security Industry Market Share Analysis report of June 2011, published by OPSWAT, … See more

The popularity of Microsoft Security Essentials has led to the appearance of malware abusing its name. In February 2010, a rogue security package calling itself "Security Essentials 2010" appeared on the internet, ca… See more