Despite Microsoft's best efforts, its new antivirus product codename “Morro” has leaked, and the pre-beta indicates, the final name is Microsoft Security Essentials (MSE), sporting a brand new UI. Currently being tested by Microsoft employees and a select few testers, the free, real-time antimalware consumer solution (for fighting viruses, spyware, rootkits, and trojans) will be released in the second half of 2009.