Recent years have seen increasing legal action from media conglomerates, who are actively protecting their intellectual property rights. Because of new technologies that make media easier to distribute and modify, fan labor activities are coming under greater scrutiny. Some fans are finding themselves the subjects of cease and desist letters which ask them to take down the offending materials from a website, or stop distributing or selling an item which the corporation believes violates their copyright.[40] As a result of these actions by media companies, some conventions now ban fan art entirely from their art shows, even if not offered for sale, and third party vendors may remove offending designs from their websites.