Shouldn't this question about security aspect of Virtual Machine on CS.SE migrated on this site? While it is barely in the scope of CS, I have a guess that this will better suit to Security.SE
I think the scope of that question actually fits CS.SE as the question itself is:
What are the limitations of stack inspection? What mechanisms have been proposed to replace it? Have any significant changes been made to the model since it was introduced in the late 90s?
but you can always flag for them to have a look, if they don't want it we could look at it.