The Stuxnet Worm first emerged during the summer of 2010. Stuxnet was a 500-kilobyte computer worm that infiltrated numerous computer systems.  This virus operated in three steps. First, it analyzed and targeted Windows networks and computer systems. The worm, having infiltrated these machines, began to continually replicate itself.
One of the most exciting Cyber Attacks in the history of attacks. It stole no money, had minimal effect on non-essential computers, started from a thumbdrive and decieved goverment official of one of the most corrupt and dangerous governments on the face of the earth for years. The first of it's kind, a piece of malware that could start WWIII or stop a war in the right circumstances. Watch it now, I promise you will learn something you didn't know before.