In a surprise ruling, a U.S. federal appeals court has told the recording industry in no uncertain terms that it does not have the right to demand the names and addresses of subscribers from the nation’s internet service providers (ISPs). A lower court had previously upheld the industry’s demand that Verizon and other ISPs release the names of their subscribers, and paved the way for nearly 400 lawsuits against users suspected of illegal file-trading. The ruling doesn’t mean that the industry must cease suing online pirates, but it will make such actions much more complicated.