So, you know how Wikileaks is a website that shares secret information with the world? Well, sometimes people don't want that secret information to be shared because it might be embarrassing or dangerous for them.
Now, imagine that some people were using Twitter to talk about the secret information that Wikileaks shared. They might even be sharing more secret information themselves! So, the people who don't want the information to be shared might go to court and ask a judge to order Twitter to give them the names of those people.
This is what we call a "court order." It's like when your mom or dad tells you to do something, but it's a judge telling someone to do something. In this case, the court order is telling Twitter to give the names of those people who talked about the secret information on their website.
It's a complicated situation because some people think the information should be shared, while others think it should be kept secret. However, the court order is just trying to find out who talked about it on Twitter so they can figure out what to do next.