The global energy transition is putting the health and safety of millions of people at risk by making it easier for state-sponsored hackers to shut down the power networks that society depends upon, according to cybersecurity experts.

Energy providers — including renewables developers and technology suppliers — need to fight back, they warn.

“It’s not a question of if you are going to be attacked, but when,” says Jason Haward-Grau, chief information security officer at Houston-based PAS, a cybersecurity adviser specialising in the energy sector.