"Extensible Markup Language (XML), Web services, and service-oriented architecture (SOA) are the latest craze in the software development world. These buzzwords burn particularly bright in large enterprises with hundreds or thousands of systems that were developed independently. If these disparate systems can be made to work together using open standards, a tremendous amount of time, money, and frustration can be saved. Whether or not we are on the verge of a new era in software, the goal alone is enough to make security people cringe. It might be easy to glue System A and System B together, but will the combination be secure? Have you ever used or developed a SOA application? If so, you might be interested in this article that talks about some security concerns with it.

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