Alan Rickman Memorial
A display appeared in Lobby 7 to honor Alan Rickman, an actor famous for his portrayal of Severus Snape in the Harry Potter films, who passed away January 14th of that year.
A photo of the hack is available here.
A ghostly doe on a pillar was the form of Snape's Patronus. "Always" appears to references a scene where Snape summons his Patronus to note his continued love for Lily. Page 394 likely refers to book 3 of the Harry Potter series, where Snape directs his class to turn to that page in their books. Instead of being an article on werewolves, the book in the hack contains a brief biography of Alan Rickman.