  Smart Grids are energy delivery networks, constituting an evolution of power
grids, in which a bidirectional flow between power providers and consumers is
established. These flows support the transfer of electricity and information,
in order to support automation actions in the context of the energy delivery
network. Insofar, many smart grid implementations and implementation proposals
have emerged, with varying degrees of feature delivery and sophistication.
While smart grids offer many advantages, their distributed nature and
information flow streams between energy producers and consumers enable the
launching of a number of attacks against the smart grid infrastructure, where
the related consequences may range from economic loss to complete failure of
the smart grid. In this paper, we survey the threat landscape of smart grids,
identifying threats that are specific to this infrastructure, providing an
assessment of the severity of the consequences of each attack type, discerning
features that can be utilized to detect attacks and listing methods that can be
used to mitigate them.
