Critics have taken aim at a study published by the U.S. Computer Emergency Readiness Team that said <A HREF="http://news.zdnet.com/2100-1009_22-6021867.html?tag=nl.e589">more vulnerabilities were found in Linux/Unix than in Windows</A> last year. The report, Cyber Security Bulletin 2005, was released last week. It claimed that out of 5,198 reported flaws, 812 were found in Microsoft's Windows operating system, 2,328 were found in open-source Unix/Linux systems. The rest were declared to be multiple operating system vulnerabilities. The report has attracted criticism from some in the open-source community. Linux vendor Red Hat said the vulnerabilities had been wrongly tagged, and so could not be used to compare the relative security of Windows and Linux/Unix platforms.