The Cybersecurity and Infrastructure Security Agency (CISA) issued on July 20, 2021, an alert (AA-22-2021A) addressing the successful Chinese intrusion of the United States oil and natural gas pipeline companies from 2011 to 2013. In its alert, CISA shares the frequency with which the attacks occurred, number of confirmed compromises, number of near misses, and the number of attacks whose depth of intrusion was undetermined.
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Attribution is an art form and one of the most difficult to achieve given the ever-evolving methods and techniques used by the attacking entity, especially when the determined entity is a nation-state with seemingly unlimited resources. CISA, together with the FBI is unambiguous in the determination and attribution of these attacks to Chinese state-sponsored actors. The target was Supervisory Control and Data Acquisition (SCADA) networks.
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