From Steven J. Vaughan-Nichols’s “Longhorn ‘Wave’ Rolling In” (eWeek: 20 October 2004):
The questions led into a discussion of Linux, with Bittmann observing that there’s a market perception that Linux is more secure.
“It’s just not true,” Ballmer responded. “We’re more secure than the other guys. There are more vulnerabilities in Linux; it takes longer for Linux developers to fix security problems. It’s a good decision to go with Windows.”