Last fall, in Northern California, the United States experienced its first-ever long-lasting and deliberate, large-scale blackout. Fueled by increased fears of devastating fires due to its century-old equipment, the region’s utility companies shut off power to more than 1.5 million people forcing many evacuations. The impact was devastating; Michael Wara, a climate and energy expert at Stanford University, estimated the cost to California as up to $2.5 billion. For cybersecurity experts like myself, the blackout was a signal of just how precarious our reliance on electricity is, and how much we have to fear in cyberattacks.