CHAPTER

1

Security Threats to Linux

ONE OF THE MOST SIGNIFICANT ATTACKS in the more than 40-year history of the Internet happened in the late 1980s. The overall numbers may not have been impressive, but when you look at it from a percentage perspective, it may have been the most devastating attack ever. In November of 1988, Robert T. Morris released a worm from a system located at the Massachusetts Institute of Technology (MIT), although he was at Cornell. The worm is estimated to have attacked 10 percent of the systems that were then connected to the Internet. The impact of the attack continued over several days while various networks that were attached to the NSFNet backbone were disconnected to get systems restored and patched. ...

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