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Developing security methods for the Web is a daunting task, in part because security concerns arose after the fact. Today, with an internationally connected user network and rapidly expanding Web functionality, reliability and security are critical. Vendors engaged in retrofitting security must contend with the Web environment's peculiarities, which include location irrelevance, statelessness, code and user mobility, and stranger-to-stranger communication. The authors offer a survey of Web security issues, focusing on particular areas of concern, such as server security, mobile code, data transfer, and user privacy.
Rubin et al. (Tue,) studied this question.