Dear Huang,
Thank you for contacting our technical support team.The Website
http://www.szcpost.com,
Let me clarify that despite the fact that ftp access is protected now,
hackers still have access to web space through vulnerable permissions
allowed in your account. We should explain that hackers are using
"write" permissions opened on the web server for overwriting hosted
data. It is not secure to have permission for the folders set to 777 or
775 as it allows everybody to do everything to this file and add virus
injections which will infect others. Having files/folders with such
permissions anyone can write to it. This means a security hole since
everybody on the server can overwrite these files or can write, remove
or overwrite files in the directories.
Please, find "permissins.list" file placed to FTP root with full list
of found files/folders with dangerous permissions granted.
You should check all files/folders found in your account and set permissions for folders chmod 755, files 644.
Please, check it from your end. Feel free to contact us if you have any questions.
Kind regards,
Technical support