Law360, New York (November 26, 2012, 12:57 PM EST) -- The U.S. Copyright Office issued its exemptions to the Digital Millennium Copyright Act of 1998 on Oct. 26. The exemptions, effective as of Oct. 28, define the limited circumstances in which users are allowed to circumvent technology that prevents access to copyrighted works, e.g., content encryption schemes. The exemptions are reviewed and issued anew every three years, so what was allowable prior to the ruling may not be anymore, and new exemptions, primarily directed to assistive technologies for the blind, are available. Companies that relied on previous exemptions should take heed that many are no longer lawful, and the Copyright Office affirmatively denied the universal legality of jailbreaking devices....