User A rented 2 ECS server and one RDS in Alibaba Cloud to setup his company public website.

User A rented 2 ECS server and one RDS in Alibaba Cloud to setup his company public website.

After the web site will become available online, the security risks he/she will face will include: (the number of correct answers: 3)
A . physical cable is cut by someone
B . ECS admin password is hacked
C . website codes has some vulnerability
D . RDS DB got unknown remote logon
E . the disk in ECS is broken

Answer: B,C,D