Duping

In a duping scheme, an entity that intends to use others as a means to achieve an illegal end tricks other people into inadvertently or unintentionally performing a potentially illegal act. In the context of file-sharing, duping schemes can be particularly effective.

Duping that caused infringing files to be shared inadvertently by young, new or unsophisticated users could still make millions of files available for downloading. Indeed, new users of file-sharing programs tend to download many more files than established users, so duping that targeted new users could add a disproportionately large number of files to the network. Duping schemes that targeted young or unsophisticated users can also ensure that attempts to enforce copyrights against those infringers who upload hundreds or thousands of infringing files would tend to target young or sympathetic users.

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