Unintended Consequences: Seven Years under the DMCA – This document collects a number of reported cases where the anti-circumvention provisions of the DMCA have been invoked not against pirates, but against consumers, scientists, and legitimate competitors.
You can download it from the following link: https://packetstormsecurity.com/files/download/45444/DMCA_unintended_v4.pdf
Source: https://packetstormsecurity.com/files/45444/DMCA_unintended_v4.pdf.html