Hackers leave hundreds of thousands without power in Ukraine.
The first known cyber attack to cause widespread public blackouts has occurred in Ukraine, it is believed. On December 23, an electricity blackout left about half the homes in the Ivano-Frankivsk region of Ukraine without power, according to local reports at the time. It is now believed by security researchers that the blackout was achieved by hackers using malicious code known as the BlackEnergy Trojan.
