Laying siege to the grid.

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    • Abstract:
      The world's most powerful supercomputer networks are under attack. On April 10, Stanford University in California announced that a number of high-performance academic computer centres had been attacked. Hackers have been breaking into computer systems for decades. Some worms are designed to hide in a desktop PC and send out spam, others attack website servers in a distributed denial of service attack in which many machines simultaneously request the same web page, causing the web server to crash.