Microsoft’s Windows 8 is vulnerable to attack by exploits that hackers have been aiming at PCs for several weeks. Microsoft said it will not patch the bug in Flash Player until what it called “GA,” for “general availability” That would be Oct. 26, when Windows 8 hits retail and PCs powered by the new operating system go on sale. Microsoft, not Adobe, is responsible for patching Flash Player in Windows 8 because the company integrated the software with Internet Explorer 10. Google has been providing updated versions of Flash Player with Chrome for more than two years.”]