U.S. critical networks are prime targets for cyberattacks. They’re preparing for Iran to strike.

The organizations representing critical networks that keep the lights on, the water running and transportation systems humming across the U.S. are bracing for a possible surge of Iranian cyberattacks.

Virtually every critical infrastructure sector is on high alert amid a deepening conflict between Iran and Israel, though no major new cyber threat activity has been publicly reported so far.

As these groups proactively step up their defenses, it’s unclear whether Washington is coordinating with them on security efforts — a change from prior moments of geopolitical unrest, when federal agencies have played a key role in sounding the alarm.