Editing Nintendo (section)

=== Intellectual property protection ===
{{main|Intellectual property protection by Nintendo}}
Nintendo has generally been proactive in ensuring that its intellectual property in both hardware and software is protected. Nintendo's protection of its properties began as early as the arcade release of ''Donkey Kong'' which was widely [[video game clone|cloned]] on other platforms, a practice common to the most popular arcade games of the era. Nintendo did seek legal action to try to stop the release of these unauthorized clones but estimated they still lost {{USD|100&nbsp;million|long=no}} in potential sales to these clones.<ref>{{cite book | first = Nathan | last = Altice | title = I Am Error: The Nintendo Family Computer / Entertainment System Platform | chapter = Chapter 2: Ports | pages =53–80 | isbn = 9780262028776 | publisher = [[MIT Press]] | date = 2015 }}</ref> Since then, Nintendo has been proactive in preventing copyright infringement of its games by [[video game emulator]]s and [[fan game]]s and other works using the company's intellectual property. The company has also suffered from various [[data breach]]es and has sought action against those that have released these leaks.