Already, a couple of serious security flaws has been discovered in Vista, a month before its official consumer release (enterprise users can get their hands on Vista right now). Read more about it at Wired:
Vista Security Flaws Uncovered
That, in combination with how hackers already found a way to fool Vista into a permanent 30-day trial. Does not bode well for Microsoft’s PR. Of course, all operating system has its share of security flaws, MacOS X has plenty as well. Just that Microsoft is always under more scrutiny than anyone else. It’s the price you pay for being a dominant, yet also hated company at the same time.