Is Vista is the most secure Windows operating system? Windows Vista has been out for about a year now and has been on top for security vulnerabilities vs. Windows XP. Microsoft has created Vista in an effort to get fewer attacks from malware and parasites. Is Vista more secure because is not as widely used as Windows XP or is it because Vista is just better in the security aspect? When it comes down to the facts, Vista has more security features built into it such as IE Protected Mode and User Account Control that lessens the chance for malware attacks. (via)