Section 1201 of the Digital Millennium Copyright Act (“DMCA”) generally makes it unlawful to circumvent technological measures used to prevent unauthorized access to copyrighted works, including copyrighted books, movies, videos, video games, and computer software. Effective October 28, 2024, the Librarian of Congress adopted new exemptions to this statutory prohibition on circumvention. The Librarian issued her rule based on the recommendations of the Register of Copyrights, which were adopted in full.