Computer experts said to be allied with Russia have created a weapon with the ability to cause major damage to the world’s electrical systems. Researchers have identified the cyber-weapon as a harmful software program or virus. They say it is designed to interfere with a computer’s normal operations. The researchers are calling this malware program “CrashOverride” or “Industroyer”. It is known to have affected the electrical system in Ukraine in December 2016. The attack briefly cut off one-fifth of all electric power in Kyiv, the capital. The cybersecurity business Dragos identified the malware in a report released on June 12. It said Russian government hackers appeared interested in targeting power centers in countries other than Ukraine. Currently, the malware is able to attack power systems across Europe and Asia. But Dragos said it could be used against the United States. With only some small modifications, it could cause power outages of up to a few days in parts of the U.S. electric grid.