This pretty closely follows an incident where someone calling themselves "thedarkoverlord" posted episodes from Netflix's upcoming season of Orange is the New Black after stealing them from an audio studio and failing at an attempt to obtain a ransom payment. At the time, they claimed to also have content from ABC, FOX, IFC and National Geographic, but not Disney. It's not clear if that is related to this situation, but of course, it could be worse -- remember what happened to Sony Pictures?
Last week there were rumors that an early work print of Star Wars: The Last Jedi had leaked, although that appears to have been a hoax. Oddly, the details Iger reportedly gave employees are similar to the forum posts that kicked off last week's rumor, claiming that the threat is to release five-minute sections of the film unless they're paid. Disney has not responded with an official statement or comment, we will update this post if we receive one.