So I managed to get mine booked in despite it being a 2006 model. I turned up and got turned away. Obviously I wanted to know why my car was not affected and I was told the security update was to disabled the functionality of using the blade in the key to unlock and drop the windows in the door lock. I demonstrated to them that I had this function on my 2006 but was told the update was for a ems2? and mine was an ems1 so the update couldn't be applied.
Needless to say my port has been relocated.