According to sources, in 2010, a major player in the offshore rigging sector had an offshore rig suffered a comprehensive malware attack. The event occured when the rig leaf the construction yard in South Korea for its production site in Latin America (probably Brazil). The malicious software managed to infiltrate essential controls, including offline safety mechanisms.
The malware's infiltration had a severe operational impact, forcing the rig to shut down for 19 days. Considering the high day-to-day operational costs of such rigs, even if it was not in production, substantial financial losses of over 10 million dollars could have been reached.