Tell that to the crew of the USS Donald Cook in the black sea where the russians hit them with the Khibiny device.
It is plausible. There are weapons that can be effective against hardened emp systems.
“There are weapons that can be effective against hardened emp systems.”
That report was from the Russian equivalent of the National Inquirer.
It was never reported by US, or mainstream Russian media.
And when ask, the USN Spokesman laughed...before he denied any such incident occurred.