The initial release of Flashback mimicked Adobe's Flash installer. Apple refuses to preinstall Adobe's Flash player, so Mac users are prompted to download and install the plug-in when they encounter a Web site that uses Flash. The FAQ explains that Flashback's creators may have exploited Apple's go-it-alone strategy. Flashback malware infections drop to 30,000 Macs.Kaspersky: Mac security is 10 years behind Microsoft'.One in five Macs infected with malware is inaccurate.