The definitions have been updated since initial reports of MSE removing Chrome.
Update posted on the Microsoft Malware Protection Center Encyclopedia entry page,
Encyclopedia entry: PWS:Win32/ZbotOn September 30th, 2011, an incorrect detection for PWS:Win32/Zbot was identified. On September 30th, 2011, Microsoft released an update that addresses the issue. Signature versions 1.113.672.0 and higher include this update.
PWS:Win32/Zbot is a password-stealing trojan that monitors for visits to certain Web sites. It allows limited backdoor access and control and may terminate certain security-related processes.
Via Ed Bott at
Users report Microsoft Security Essentials removes Google Chrome.
