If it is attacked by some internet hacker, which of the following consequences such attack could cause?

ECS cloud server is one of the service provided by Alibaba Cloud.

If it is attacked by some internet hacker, which of the following consequences such attack could cause? (the number of correct answers: 2)
A . Physical Server Damage
B . Leak of customer sensitive data
C . Service running on this ECS become not available
D . The datacenter where the ECS belongs to need to shutdown

Answer: B,C