1 Several years ago, one of the world’s largest financial institutions put out a request for proposals (RFP) to replace its legacy firewall infrastructure. The company has a very centralized IT infrastructure: A global technology group provides IT services to all business units around the world. The initiative would ultimately replace the company’s entire enterprise firewall infrastructure. There were several reasons behind this initiative and its timing. For one thing, the company regularly reviews all its technologies to make sure they support enterprise strategies and requirements. Second, the firm was concurrently embarking on a massive automation initiative and needed the firewall infrastructure to support this undertaking. Finally, the incumbent firewalls—all from a single ve

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