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Imagine working for the company providing Microsoft UK's events registration system. It's the beginning of summer in June 2007, and the news is filled with floods in the north of England where people have had to evacuate their homes while the rest of the country swelters in the well-above-average heat and sunshine. You fire up your Web browser just to check how your site is doing, only to discover the page shown in Figure 1-1. You've been hacked!