Comment How reliable is this data? (Score 2) 150
hacktivists, by definition, will publicize their break-ins so you can be sure they will be counted.
Common thieves and governmental spies (chinese, russians, etc.) on the other hand, might never be discovered if their level of competence is superior to that of the security administrators of a company.
Therefore, the statistics offered are very dubious and I would not be surprised if they are completely and spectacularly wrong.