On April 25 2018, the Japan Intellectual Property High Court gave a decision that made Twitter users uneasy. In this case, a photographer who has the copyright of a photo demanded Twitter, Inc. and Twitter Japan disclose the information on the user who had posted the photo on Twitter without permission from the photographer as well as the information on the users who had retweeted that Tweet using the Twitter Retweet function. For the user who tweeted the photo, the court ruled that Tweet represents copyright infringement and ordered Twitter, Inc. to disclose the user information (i.e. email address) to the photographer. On the other hand, for the users who […]