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Preventing the fraudulent use of Internet DSL accesses by dial-up accounts: a network authentication issue.


{LANG_NAVORIGIN} Enterprise Security
By: Bruno Germain, 03/24/2004



This document will first describe such a scenario to put the following descriptions into context. Then we will look at the details of a typical deployment between DSL providers and ISPs in order to highlight the areas of vulnerability of the model. Finally we will suggest an approach to prevent this type of fraud with some other elements that could lead to tailored solutions for the ISPs: as the next sections will demonstrate, a unique overall solution is most unlikely given the number of ways each ISP could deploy its services.

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