A Cyberattack Has Caused Confirmed Physical Damage for the Second Time Ever | WIRED.

The report also illustrates the need for strict separation between business and production networks to keep hackers from leaping from one network to another and remotely accessing critical systems over the internet. Although a network can only be considered truly air-gapped if it’s not connected to the internet and is not connected to other systems that are connected to the internet, many companies believe that a software firewall separating the business and production network is sufficient to stop hackers from making that leap. But experts warn that a software firewall can be misconfigured or contain security holes that allow hackers to break through or bypass them nonetheless. It’s not known how the German network was configured.