The main item is a photo published in a magazine sent out by a UK train company. A close up of the photo reveals some great information goofs by showing usernames and passwords on a white board. This is a great example of how critical information can be leaked not just by newsgroup postings or on mailing lists. The key lesson to learn here is "why were the usernames and passwords on white board in the first place". This is not something new though. I have been in companies where similar info was listed on the walls on white boards.
Great blog post though.