When I tried to access my Orkut account on Monday morning, I got an "Unable to Connect" message. I just assumed that they were having some temporary problems. When I couldn't login on Tuesday, I thought maybe the company had tightened down the firewall, so I tried later that evening from home with the same result. So I did a Google search to see if anything had been reported, and found a Wikipedia entry. Other than that, it seems very few people noticed this security problem.