For years, ill-intentioned hackers have dreamed of plaguing the world’s infrastructure with a brand of sabotage reserved for Hollywood. They’ve mused about wreaking havoc in industrial settings by burning out power plants, bursting oil and gas pipelines, or stalling manufacturing plants.

But a key roadblock has prevented them from causing widespread destruction: they’ve lacked a way to take remote control of the electronic “controller” boxes that serve as the nerve centers for heavy machinery.

The attack on Iran changed all that. Now, security experts — and presumably, malicious hackers — are racing to find weaknesses. They’ve found a slew of vulnerabilities.

Think of the new findings as the hacking equivalent of Moore’s Law, the famous rule about computing power that it roughly doubles every couple of years. Just as better computer chips have accelerated the spread of PCs and consumer electronics over the past 40 years, new hacking techniques are making all kinds of critical infrastructure — even prisons — more vulnerable to attacks.