exercise

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Across
  1. 3. A threat that tricks users into divulging private information through website
  2. 6. hacking attack tricks victims to click on an unintended link
  3. 7. act of getting something, especially money, by force or threats.
  4. 8. To be not identified by name; of unknown name.
Down
  1. 1. something that is threatening and may cause harm
  2. 2. The act of stealing sb’s identity, bank account numbers, etc. over the internet
  3. 4. software such as a virus designed to damage computer systems
  4. 5. To be not officially or legally allowed or approved of doing sth