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?
Change 'Administrator' to some other name
With 'Server Guard' protection in Alibaba Cloud, you can set password to some easy to
remember words.
Except some necessary accounts for system management, disable or delete other useless
accounts
Always set password with highly complex combination of number, letter and other
characters
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