In software your security track record is ideally judged by the products you release, not the products you are developing. Nonetheless, Microsoft is drawing flack over an unpatched vulnerability in the beta and Release Candidate versions of Windows 7; Windows Vista; and Windows Server 2008. With attacks incoming, Microsoft and security experts are urging testers to run a workaround to disable to exploitable component in the meantime. The entire mess, though, goes to demonstrate both the dangers and benefits of thorough software testing.