Security
Best Practices: Additional User Security
By default MySQL allows you to create user accounts and privileges with no password. In my earlier MySQL Best Practices: User Security I describe how to address the default installation empty passwords.
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It is critical that you do not use the default MySQL installation security, it’s simply insecure. Default Installation When installed, MySQL enables any user with physical permissions to the server to connect to the MySQL via unauthenticated users.
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