Business e-mails may be interpreted as copyrighted material and prohibited from unauthorized transfer to third parties, the UK Supreme Court ruled. This does not apply to all letters, but only to those whose content is the result of the author’s work and does not include materials from other authors. The decision was taken by a judge in a case related to a letter from Karl Jorgensen, vice-president of the Danish company Dansk Eternit Holding, written to the British branch of Cembrit Blunn. In the letter, the vice-president discussed the quality of the roofing materials of the company. After the letter was sent to Apex, a contract manufacturer of roofing materials, and circulated within it, the Danes sued for copyright infringement and the unauthorized use of confidential information. Although Apex insisted that there was nothing original in the letter, the judge did not agree. “After comparing the letter with previous works, on the basis of which it was written, I have no doubt that during the creation of this letter their own skills and work were attached, and this proves copyright infringement,” the judge wrote in conclusion, The Register reported.