ZumbaUp, a leading jeans brand, realized that a user named PoisonX had breached its security codes and gained unwarranted access to the company's highly classified information. The company was shocked to see all of its business tactics and prospective deals put up online, exposed to everyone. In this scenario, ZumbaUp is a victim of _____.

A. spamming
B. hacking
C. phishing
D. pharming