According to Ponemon Institute's 2015 survey, which of the following was not among the causes of the costliest cybercrimes?

According to Ponemon Institute's 2015 survey, which of the following was not among the causes of the costliest cybercrimes?



A) malicious insiders

B) malicious code

C) denial of service

D) botnets



Answer: D) botnets


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