HADERA, Israel - Three hooded hackers hunch over their computer screens in the control room at Israel's new state-of-the-art "Cyber Gym", where IT and infrastructure company employees train to defend against cyber attacks.
The facility, a series of small buildings in the shadow of the looming Orot Rabin power station on Israel's northern coastline, was inaugurated this month by the Israel Electric Corp (IEC), which has experienced its fair share of cyber attacks.
"Israel, we believe, is the most-attacked country," Cyber Gym director Ofir Hason told AFP.
"And as the most-attacked civilian company in Israel, this gives us the unique capabilities to train other companies around the world" to defend against system hacking.
IEC itself is subjected to some 10,000 attacks per hour, CEO Eli Glickman said, and the Cyber Gym's instructors are well-versed in the art of cyber warfare.
"We're a group of professionals from the army, security services and (straight) from university," said an instructor who called himself "Mister" and refused to show his face on camera.
Mister launches simulated attacks against the computer systems of the trainees, who sit in an adjacent building.
"It's a playground to simulate real cyber attacks," he said while seated in the "attack room" - a computer nerd's paradise, decorated with Star Wars and Pac-Man murals and lines of code running off wall-mounted screens that show the hacking taking place live.
But the work is serious - Cyber Gym's launch was attended by members of Israel's intelligence community - and is designed to put trainees under as much pressure as possible.
Trainees - mostly IT and systems workers from energy and infrastructure companies - sit in the "defence room" experiencing the hacks in real time, and their progress is scrutinised by another instructor, who refers to himself only as "A".
"Each attack is different, so there's no way for the defence teams to cheat. There's no set scenario or scripted attack; they're performed in a different way, live, by the hackers next door," he said.
"If the hackers succeed, the lights go off and the system shuts down," he says, in what is a simulation of just one potential result of a successful attack.
Plunging the room into darkness is one of a number of ways the centre shows the practical outcome of a cyber attack, which can often be forgotten when the fight is conducted in the ether.
"An attack could end with damage to equipment, or a blackout around Israel," Hason said.
"In the cyber arena, when you fail to protect your system, the influence could be physical damage to your system."