Without knowing anything more about it than simply there were two occurrences of a stowaway..

Was the security breach through the terminal itself? Honestly, I would have thought they'd have made it onto the apron of the airport itself without going through the terminal. Kind of like that guy who made his way onto JFK from the water.

edit: Sorry, I thought we were talking about the person who survived the flight in the wheelwell of that aircraft a while back, and I thought this most recent thing was the same thing. Looks like some woman managed to get into the airport without a boarding pass. Please ignore my message above.