Article 13 is a section of the recently passed European Union Directive on Copyright in the Digital Single Market that makes websites responsible for preventing copyrighted content from being uploaded through mass filtering technology. Supporters believe it protects artists, while opponents argue filters cannot distinguish fair use and fear censorship. If widely implemented, Article 13 could impact memes, online commentary using copyrighted material, and new websites that cannot afford filters. There is concern it may fundamentally alter the open internet.