It's called hedging one's bets. While some warn of Iranian cyber attacks against US utilities, others say there's little to no chance of that occurring. Regardless,
the Federal Energy Regulatory Commission and the National Association of Regulatory Utility Commissioners jointly organized a special classified security briefing for February 12 at the Cyber Threat Intelligence Integration Center. The Office of the Director of National Intelligence will conduct the briefing at its in Bethesda, Maryland (USA) facility. Topics will cover cyber security threats to U.S. electric and gas infrastructure as well as adversaries’ emerging tactics, techniques, and practices. It will be open to NARUC members and invited participants only.
Though Iran has had occasional incursions into the computer systems of local utilities in the US, such as breaking into a dam in New York several years ago, it is very unlikely that the country could impact the electrical grid or cause similar large-scale disruption. Theoretical Iranian cyber attacks would likely target private companies in industries that it already has strong familiarity with, such as oil and gas, and focus on destroying files rather than stealing data or securing ransom payments.