  Whether as telecommunications or power systems, networks are very important
in everyday life. Maintaining these networks properly functional and connected,
even under attacks or failures, is of special concern. This topic has been
previously studied with a whole network robustness perspective,modeling
networks as undirected graphs (such as roads or simply cables). This
perspective measures the average behavior of the network after its last node
has failed. In this article we propose two alternatives to well-known studies
about the robustness of the backbone Internet: to use a supply network model
and metrics for its representation (we called it the Go-Index), and to use
robustness metrics that can be calculated while disconnections appear. Our
research question is: if a smart adversary has a limited number of strikes to
attack the Internet, how much will the damage be after each one in terms of
network disconnection? Our findings suggest that in order to design robust
networks it might be better to have a complete view of the robustness evolution
of the network, from both the infrastructure and the users perspective.
