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ACCA Applied Knowledge · Business and Technology · Regulation and financial crime

Which of the following best describes ransomware?

Ransomware is malicious software that encrypts or locks an organisation's data or systems and demands payment, usually a ransom, before access is restored. It differs from spyware, denial of service attacks and pharming, which involve secret monitoring, traffic flooding and redirection respectively.

  1. ASoftware that secretly records keystrokes and sends them to a third party
  2. BMalicious software that encrypts or locks data and demands payment for its releaseCorrect
  3. CA flood of requests sent to a website to make it unavailable to users
  4. DFraudulent redirection of website visitors to a fake site without their knowledge

Explanation

Ransomware blocks access to a system or encrypts files and demands payment to restore access. Option A describes spyware or keylogging. Option C describes a denial of service attack. Option D describes pharming.

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