"As currently stands, operators of online platforms do not, in principle, themselves make a communication to the public of copyright-protected content illegally posted online by users of those platforms,” the EU Court of Justice said.
“However, those operators do make such a communication in breach of copyright where they contribute, beyond merely making those platforms available, to giving access to such content to the public,” judges said.
The EU court said platforms could also be liable if they do not put in place the appropriate technological tools to tackle copyright breaches by their users or where they provide tools on their platforms for illegal sharing of content.