Copyright infringement is a hot topic these days, unfortunately. Usually, when a big website is involved in something like this, it's either because its users upload copyrighted content without consent or because they're being sued by some big media corporation.
Twitter though is finding itself involved
in a copyright infringement suit, filed by one photographer who asked the site to remove copies of his photos that he hadn't authorized, but failed to convince Twitter to do so.
Christopher Boffoli, a photographer known for his miniature people and food series, alleges that Twitter failed to comply with requests to take down infringing copies of his photos despite a total of four DMCA takedown notices being sent its way.
So, he's now suing for willful copyright infringement and failing to comply with a takedown notice, therefore forfeiting any DMCA safe harbors Twitter may claim. That is, of course, if the allegations are true and the court believes them. But it's going to be a while before we get to that.