Remote Software Upgrade Causes Loss of Control & View
Event Year: | 2006 | Reliability: | Confirmed |
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Country: | United Kingdom | ||
Industry Type: | Transportation | ||
Description: | ABB performed a remote, unplanned, and unannounced software upgrade to the Power Control Centre between 10am and 11am resulting in a 22 minute loss of control and view of all substations across the network. |
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Impact: | Loss of control and view of all substations across the network for 22 minutes. |
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Action Description: | Decommissioned the undocumented ISDN line from the control centre. |