, SecurityFocus 2007-05-18
The U.S. House of Representative's Committee on Homeland Security called this week for the Nuclear Regulatory Commission (NRC) to further investigate the cause of excessive network traffic that shut down an Alabama nuclear plant.
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"Data storm" blamed for nuclear-plant shutdown
2007-05-20
Anonymous (1 replies)
Anonymous (1 replies)
"Data storm" blamed for nuclear-plant shutdown
2007-05-22
0xnull (2 replies)
0xnull (2 replies)
"The integrated control system (ICS) network is not connected to the network outside the plant..."
"The device responsible for flooding the network with data appears to be a programmable logic controller (PLC)..."
"The flood of data spewed out by the malfunctioning controller caused the variable frequency drive (VFD) controllers for the recirculation pumps to hang."
"Such failures are common among PLC and supervisory control and data acquisition (SCADA) systems, because the manufacturers do not test the devices' handling of bad data, said Dale Peterson, CEO of industrial system security firm DigitalBond."
"...the controllers for the pumps locked up following a spike in data traffic -- referred to as a "data storm" in the NRC notice -- on the power plant's internal control system network."
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