What is it?
SCADA is not just a focus because of its often critical deployments, but also because performing vulnerability research on SCADA systems is easy, like 1990′s stack buffer overflow type-of-easy.
Should I be worried?
A few years ago during a SCADA network penetration test, we found a zero-day vulnerability within SCADA software that helped manage a city’s water filtration process. Attackers could manipulate a water supply to make it undrinkable. The environmental impact could have had a harmful enough effect on local wildlife that we came up with the phrase “SCADA sport fishing.”