It's very unlikely, but someone claims to have hacked into the publishing house that distributes the Harry Potter books (Bloomsbury) and obtained the final manuscript of the soon-to-arrive 7th book. This man (kid) supposedly got into the computers of the publisher by sending a link to a browser exploit through email and having the publisher click on it.

Don't click if you don't want potential spoilers.

Harry Potter 0day [Seclists via The Inquirer]