Upgrading to OS X to 10.8 Mountain Lion with Trend Micro Security for OS X | OIT Website. So it seems safer to just avoid using any form of Trend Micro. It caused a problem on a friends PC last week as well so I had to remove it. Sophos has worked great for me.
Questions and answers about the Twitter hack – StumbleUpon. This has some good information. I have a Twitter account but I haven’t seen any communication about this. When this stuff happens you have communicate with your customers or they will lose their trust in you.