Guest permissions on user databases

Applies to: SQL Server

This rule determines whether the guest user has permission to access the database. This rule applies to user databases only.

Best practices recommendations

Revoke the guest user permission to access the database if it isn't required.

The guest user can't be dropped, but guest user can be disabled by revoking its CONNECT permission by executing REVOKE CONNECT FROM GUEST within any database other than master, tempdb, or msdb.

For more information

Securing SQL Server

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