The Digital Millennium Copyright Act prohibited bypassing copyright protection systems thwarting many activities normally considered lawful such as “fair use”, use of snippets for education and critique, and investigations by computer security researchers.

The U.S. Copyright Office in the Library of Congress has issued a final rule clarifying (and expanding) exemptions for permissible activities.

See: Exemption to Prohibition on Circumvention of Copyright Protection Systems for Access Control Technologies – Final Rule

By EdwardM