The internet and its uses

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Across
  1. 3. a program or program code that replicates itself
  2. 4. unsolicited emails
  3. 5. text file of words used in a brute force attack
  4. 7. unwanted advertising
  5. 9. a digital record of date and time
  6. 12. the act of gaining illegal access to a computer
  7. 13. a text-based address fora web page
  8. 14. text file sent from a website to a user’s browser
  9. 15. type of malware that gathers information
  10. 18. corrupting or manipulating data illegally
  11. 19. sending out legitimate-looking emails
  12. 20. text or an image that is link to a site
Down
  1. 1. a form of digital currency
  2. 2. the protection of data by use of coding
  3. 6. software that connects to a domain name
  4. 8. a stand-alone type of malware that can selfr-replicate
  5. 10. the world-wide interconnection of networks
  6. 11. fake requests come from many different computers
  7. 16. massive collection of web pages
  8. 17. a decentralised database