4. Insider (You)
HAK25 insider

Who: Disgruntled employees, contractors, whistleblowers

Objectives: Score-settling, leaks, public good

Targets: Large companies, governments

Signature: Document theft

Classic Case: Maroochy Shire, an Australian district along the Sunshine Coast in Queensland, was inundated with millions of gallons of untreated sewage in 2001 when a contractor hacked and took control of 150 sewage pumping stations. He had been passed over for a job with the district. His dirty work cost Maroochy Shire upwards of $1 million.


  @FortuneMagazine - Last updated February 26 2013 06:33 AM ET
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