This virus leveraged Windows OS opened port 445 to initiate the attack, so the quickest way to prevent this kind of attack is?

May, 2017. New blackmail virus WannaCry burst globally.

This virus leveraged Windows OS opened port 445 to initiate the attack, so the quickest way to prevent this kind of attack is?
A . Change ‘Administrator’ to some other name
B . With ‘Server Guard’ protection in Alibaba Cloud, you can set password to some easy to remember words.
C . Except some necessary accounts for system management, disable or delete other useless accounts
D . Always set password with highly complex combination of number, letter and other characters

View Answer

Answer: C