No

A cyber attack is a cyber operation, whether offensive or defensive, that is reasonably expected to cause injury or death to persons or damage or destruction to objects.

Michael Schmitt et al; Tallinn Manual 1.0, pp 92
  • Cyber Operation?
  • Expected to cause death or injury to people or damage to objects?
A Web Skimmer on The Principality of Sealand’s Online Store does not match this definition. Here's a list of actual cyberattacks and and why this matters.

  1. Was A Cyber Attack? No
  2. Was A Cyber Attack? No
  3. Was A Cyber Attack? No
  4. Was A Cyber Attack? No
  5. Was A Cyber Attack? No
  6. Was A Cyber Attack? No
  7. Was A Cyber Attack? No
  8. Was A Cyber Attack? No
  9. Was A Cyber Attack? No
  10. Was A Cyber Attack? No
  11. Was A Cyber Attack? No
  12. Was A Cyber Attack? No
  13. Was A Cyber Attack? No
  14. Was A Cyber Attack? No
  15. Was A Cyber Attack? No
  16. Was A Cyber Attack? No
  17. Was A Cyber Attack? No
  18. Was A Cyber Attack? No
  19. Was A Cyber Attack? No
  20. Was A Cyber Attack? No
  21. Was A Cyber Attack? Yes
  22. Was A Cyber Attack? No
  23. Was A Cyber Attack? Yes
  24. Was A Cyber Attack? No
  25. Was A Cyber Attack? No
  26. Was A Cyber Attack? Yes
  27. Was A Cyber Attack? No
  28. Was A Cyber Attack? No
  29. Was A Cyber Attack? No
  30. Was A Cyber Attack? Yes
  31. Was A Cyber Attack? No
  32. Was A Cyber Attack? Yes
  33. Was A Cyber Attack? No
  34. Was A Cyber Attack? No
  35. Was A Cyber Attack? No
  36. Was A Cyber Attack? No