pump 'n' dump
pump 'n' dumpA semantic attack involving fraudulent information that depresses or raises stock values. The perpetrators benefit by buying or selling shares while prices are distorted. One example was a fake press release in April 1994, claiming that a company called PairGain was being unexpectedly bought out at USD $19 per share. PairGain shares rose from $8.50 to $11.25 before the scam was discovered. The hacker was arrested for stock fraud.
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