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You should not disable the guest user in the msdb database in Microsoft SQL Server all editions

By Johan van Soest.

Published : 2014-01-30.

Last updated : 2020-10-31.

SQL Server Books Online recommends that you disable the guest user in every SQL Server database as a best practice for securing the database server. This recommendation does not apply to master, msdb and tempb system databases as described in this article.

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