Cybersecurity

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Across
  1. 3. is a person skilled in information technology who uses their technical knowledge to achieve a goal or overcome an obstacle
  2. 5. software to defend the computer
  3. 6. is a method of exchanging messages ("mail") between people using electronic devices.
  4. 7. protection of computer systems and networks
Down
  1. 1. data .....
  2. 2. any software intentionally designed to cause disruption to a computer, server, client, or computer network
  3. 4. synonym for nasty