Why is it possible in Toad to view objects owned by other schema users without qualifying it?
For example: A view (view_1) is owned by User1 and while logged in as User2 in the same database, I perform a describe on the view_1 and it displays the structure of the view for User1. i.e. User1.view_1
The reason why Toad will display the contents the view owned by another schema user is simply so the user can view objects they have access to without qualifying it; it's for convenience and just one reason why Toad is so much easier to use. This is not a security issue.