From the article:
The random chatter of several hundred Microsoft engineers filled the cavernous executive briefing center recently at the company's sprawling campus outside Seattle.
Within minutes after their meeting was convened, however, the hall became hushed. Hackers had successfully lured a Windows laptop onto a malicious wireless network.
Matt Thomlinson, whose job it is to help make Microsoft engineers create more secure code, noticed that some of the engineers were turning red, becoming obviously angry at the demo hacking incident. Yet as painful as the lesson was, he was glad to see the crowd of engineers taking things personally.