LinkedIN is used heavily in my neck of the woods. I was trying to find the file but couldn't so I changed my password. Hopefully a hacker would have to do some heavy lifting to do anything with those hashes.
UPDATE: Update: In a post this afternoon on the LinkedIn Blog, the company confirmed that some LinkedIn account passwords had been compromised. LinkedIn has deactivated the passwords for affected accounts and sent out an email for the owners of those accounts to reset their passwords. LinkedIn's customer support team will send out a second email to affected users that will provide further information on the security breach. Further, LinkedIn noted that the site has recently implemented improved security protocols. Passwords for LinkedIn accounts are now encrypted in a manner that includes both hashing and salting. Read more: http://www.electronista.com/articles/12/06/06/encrypted.passwords.reportedly.posted.to.russian.hacker.sites/#ixzz1x3BjXvMp