Which of the following information security incidents did the Delmont organization face?

Otis is an incident handler working in the Delmont organization. Recently, the organization is facing several setbacks in the business and thereby its revenues are going down. Otis was asked to take charge and look into the matter. While auditing the enterprise security, he found the traces of an attack where proprietary information was stolen from the enterprise network and was passed on to their competitors.

Which of the following information security incidents did the Delmont organization face?
A . Unauthorized access
B . Network and resource abuses
C . Email-based abuse
D . Espionage

Answer: D