CNN is reporting
that the Department of Homeland Security managed to blow up an
electrical generator in a simulated cyber attack. It's a vivid
demonstration of how the growing dependence on networked control systems
links virtual world actions with real world effects.
This
shouldn't really surprise anyone. Power grids are already too complex
and interconnected to be controlled in any way other than by remote
networked systems. Heck, pilots don't really fly jets much anymore -
they just use the stick to tell the computer to take the plane in a
particular direction. In fact, I doubt planes will even have pilots in
50 years, they'll be just like the automated trams that already haul
people around on the ground at airports.
I
can currently monitor my home through a web cam, and it won't be long
before I have the ability to turn on the lights remotely and crank the
air conditioning or heat from the office so things will be nice an comfy
when I get home. Someday, I imagine someone could hack my house and do
all sorts of annoying things. And if someone were to hack a plane,
train, hydroelectric plant, or a nuclear power plant, things could get
bad pretty quick.
The experts in the CNN story say that "a lot of
the risk has already been taken off the table, " by finding ways to
prevent the transformer hacks, but that it could take months to fix
them all. That means our power grids are suffering from a classic zero day vulnerability.
That is, the powers-that-be have publicly pointed out the flaw and
announced fix, but anyone with the motivation has plenty of time to find
unprotected systems to attack.
An expert interviewed on CNN
claims that shutting down power to 1/3 of the country would have the
economic and social devastation comparable to the nation being
simultaneously hit by 40-50 major hurricanes.
Will there be an
attack? Probably not. On the other hand, this is just one vulnerability.
No doubt every networked machine or system, just like every networked
computer, will eventually face similar threats.