New report finds the malware, dubbed CrashOverride, is just the second instance of malware specifically tailored to disrupt or destroy industrial control systems.  Hackers allied with the Russian government have devised a cyberweapon that has the potential to be the most disruptive yet against systems that Americans depend on for daily life.  Russian government hackers have shown their interest in targeting U.S. energy and other utility systems; the Sandworm cyber-espionage campaign is tied to the Russian government (news).