HBO’s Game of Thrones has the dubious honour of being popular with both pirates and viewers.
After its fifth season began on Sunday, users of Periscope, the Twitter-owned live-streaming app, shared the fantasy drama.
Twitter said the app complies with U.S. copyright law and will respond to valid take-down requests.
On Monday, HBO said four unaired Game of Thrones episodes that were leaked online had come from within a group authorised to receive preview DVDs.
Neither HBO nor Twitter had further comment on the issue.
But in a Periscope copyright policy posted online, the company said it expects users to respect intellectual property rights and asks those alleging copyright infringement to contact it with details and proof.
