Microsoft is getting a little bit more than it bargained for now that its acquisition of LinkedIn is official. LinkedIn's training site Lynda.com is notifying users of a database breach that includes the passwords of just under 55,000 accounts. All those passwords were "cryptographically salted and hashed" to prevent access the site says, but it's resetting the logins just in case. Lynda.com is also alerting 9.5 million customers "out of an abundance of caution," according to the email it's sending to users.