The story as a Hollywood B-category action movie
In 2001, Swordfish arrived in the cinemas, where the unit called "Black Cell" led by Gabriel Shear (John Travolta) used hacking to raise funding against terrorism.
Yesterday, probably a lone hacker has attacked the Etherum network and he was able to pull a decent package from here. Whether he acted alone or is a group, we can only speculate. Or we can leave it to Hollywood screenwriters who will serve us a story with a great deal of drama.
The yesterday's events are excellently described in this article.